It's New Years Eve and Cronus escapes from Tartarus! When he learns of the Prophecy, Cronus frees the giants and unleashes the fearsome Typhoeus in order to stop Jay, Herry and Atlanta from discovering their destiny.
Theresa, Odie and Archie arrive to find New Olympia hit with a power blackout. When the heroes investigate they find and defeat the Typhoeus- but not before Cronus sets a diabolical plan in motion! Is this the end of the world, as we know it?
The Earth is about to stop turning, but Neil thinks it still revolves around him- even after Cronus captures him! The gang has to save Neil, the last hero, if they're to fulfill the prophecy and save the world from destruction. Luckily, Neil gives Odie an idea; but is there enough time?
Who let the dogs out? Cerberus did! What in Hades can calm this savage beast? Only Orpheus' lyre can do that; problem is the heroes have to travel to the underworld to get it... and that's exactly what Cronus wants them to do.
The demigod Pan is throwing a party, but he wants to bust more than a few moves. He's under Cronus' power and, in the guise of an environmentally aware DJ, has Atlanta under a spell of his own. Stop! It's PANIC time!
Odie lets Hermes' powerful caduceus fall into Cronus' hands and, thinking he doesn't have the stuff heroes are made of, he quits the team- and joins Cronus! Is this a ruse worthy of his ancestor Odysseus, or has Odie really turned to the dark side forever?
Jay baits a trap for Cronus but fails. Now Cronus has the key to a powerful device and he's on his way to Atlantis! Jay has to lead the heroes and find Atlantis before Cronus does if they're going to save the world from a becoming a watery grave!
When a bad moon rises on All Hallows' Eve, Theresa and the gang find out that Hecate, Queen of the Dead, still has a few tricks up her sleeve. Though Theresa has learned a little magic, Hecate wrote the book on it- like, I mean, what's Theresa supposed to say to stop a legion of zombies?
After Neil single-handedly captures Medusa, he can't stop bragging to the gang. Neil not only drives them crazy, but he also gets under Medusa's sisters scaly skin. When the Gorgons kidnap Neil in exchange for Medusa, the whole team is caught between a rock and a hard place.
When Cronus manages to slip some ancient DNA into a cloning experiment, the heroes have to grab the bull by the horns as Minotaurs run loose in New Olympia's underground tunnel system. To defeat them though, Odie has to get over his claustrophobia and help the others out of a tight spot.
Cronus awakens a descendent of Medea, and Jay feels the fury of a witch his ancestor Jason once scorned. Of course Medea isn't alone, she has an army of amazons covering her back. Hopefully Jay will realize in time he has an army of his own in his back pocket: Spartoi warriors.
Jay forms an alliance when Campe, the jailer of Tartarus, is out to catch her only escapee: Cronus. But when Cronus captures Granny, Herry takes off to rescue her and plays right into Cronus' hands... forcing Campe to choose between Herry's life and Cronus' defeat.
Archie's curiosity gets the better of him and he opens pandora's box, unleashing a horrible plague and little hope. But when Atlanta, Odie and Herry are infected and the plague threatens the city's water supply, it's Archie's ancestry that provides the only ray of hope.
Arachne is a spider who once was challenged by Athena at a weaving competition--- but a jealous Athena turned Arachne into a spider, and now Arachne wants to be human again. Using Atlanta, Arachne lures the Heroe's into a trap, and their only hope to escape is to wake Atlanta from hypnotism--- but will they be able to do it in time?
Cronus steals control of the wind from Aeolus, the King of the Winds, and causes a storm that shipwrecks Odie, Neil and Jay. Odie is rescued by Calypso, the nymph who loved his ancestor Odysseus and sees him as a replacement to stay with her forever. Meanwhile, the rest of the group heads out to sea on a rescue mission, where they're caught in another storm and attacked by the sea monster known as Scylla. It's up to Odie to convince Calypso to let him go and save his friends and return Aeolus' powers to their rightful owner.
The heroes have to keep their head above water when Cronus frees the kraken. But this isn't just another terrible beast he's summoned to defeat the heroes- it's bait to draw out Poseidon so Cronus can exact revenge! Problem is: his plan works!
The Cyclops that was blinded by Odysseus is understandably bitter after all these years. Cronus offers the Cyclops his sight so he can exact his revenge upon the heroes- and when Jay and Odie are captured, it's nothing but trouble as far as the eye can see!
All is fair in love and war when Eros hands out hate on Valentine's day. Using arrows blackened by Cronus' rage, even Neil hates himself! It's up to Jay to bring the gang back together and stop Cronus' new Messenger of Mean.
Jay is poisoned by a Chimera when trying to save Odie, and the other heroes only have a short period of time to bring back aconite from the Underworld's Plains of Asphodel to save him before his soul is lost to Hades forever and the prophecy is broken. Meanwhile, Jay has to elude and fight Atropos, one of the Fates whose duty is to take his soul to rest eternally in the Elysian Fields. With the end of the world coming if the heroes fail, Cronus also attempts to put together an ideal costume for his reign.
When archeologists discover the first robots ever built by Hephaestus, it leads Cronus to Hephaestus' most terrifying creation: Talos! The bronze giant is reconstructed and threatens to destroy an entire island, and our heroes!
Cronus sends Herry back in time to perform the Labours of Hercules. A lion, a hydra, a dragon- oh my! Jay and the others try to save Herry, but first they have to face the music of the seductive sirens!
Cronus turns a commando unit into an army of giant ants and is calling out Zeus to fight. Problem is: the gang doesn't know where Zeus is- and he's the only one who can stop the giant ants from marching on New Olympia!
Melampus, the Dr. Doolittle of ancient Greece, is able to stop the Stymphalian birds and save the heroes- though not before one captures Neil. When Cronus steals Melampus' powers, it's all up to Theresa to focus her psychic ability and save their bird-brained friend.
Taking advantage of the bad blood between her and Hera, Cronus frees Sybaris, Queen of the Vampires! Sybaris may not be able to kill the immortal goddess- but seven teenage heroes are certainly something she can sink her teeth into.
Neil's been kidnapped! Kidnapped! Kidnapped! Echo steals away Neil, descendent of her long time love Narcissus, and leaves the heroes at Cronus' mercy. Surprisingly, Neil has some sound advice for Echo and manages to save his friends.
It's New Year's Eve and Cronus' powers are at their peak! Though he sure puts a damper on the heroes' party by killing Odie, Jay finds a way to go back in time and save their friend. Not to be outdone, Cronus goes all the way back to the Titan War for another shot at defeating Zeus!
It seems as though our heroes have finally defeated Cronus for good...but have they? After Thanatos, the god of death, kidnaps Archie, the rest of the team starts to think that not all has gone according to plan...
After learning about the myth of Perseus, Odie finds the Graes's magical eye at the bottom of a lake, giving the team the ability to find Cronus any time they want. Unfortunately, the Graes want the eye they share back, and are ready to make our heroes experience their worst fears to get it back...
Cronus brings the constellation Orion down from the heavens to track down the team, and we learn all about the great hunter's history with Artemis... Meanwhile, Neil is being profiled for a TV show, but the camera girl is determined to find out more than she should about where he and his friends keep going.
When the 7 heroes are on a trip to the Elysian Fields to meet their ancestors and learn more about them, Cronus devises a plan to swipe their memories. Problem for him is that the plan backfires when he and the heroes but Neil lose their memories. Now it's up to Neil to get the poppies to heal his friends before he loses them forever!
Cronus is looking for the Tablet of Prometheus, and the seven heroes search several temples in a race to beat him to it. However, Odie is starting to feel unappreciated, so he uses the Timepiece of Zeus to impress his teammates-but by doing so, he also unintentionally tells Cronus exactly where he is...
The Tree of Immortality is dying...and all the gods are dying with it! Atlanta (accompanied by a very jealous Archie) tracks down Pan to see if he can help.
After looking into the mask of Phobus, Archie becomes scared of everything. Meanwhile Cronus frees Lykon, a werewolf.
Persephone has gone missing, and as a result, the entire world (and underworld) is experiencing a sudden second winter. Atlanta and Neil try to track down Demeter, Persephone's mother, to convince her to warm the earth up again, while the rest of the team goes to the Underworld to try and find Persephone.
When Cronus steals the chest of the son of Prometheus, it's up to the team to find the key before Cronus does. After Atlanta falls into a pit, she meets up with Tantalus, and he puts a curse on her. This way Atlanta thinks she can take on Cronus herself with the armour of Athena called the aegis. But will the armour itself take over Atlanta?
While walking in an ancient city he once ruled, Cronus happens upon Gaia, a.k.a. Mother Earth (and Cronus's mother!), who sets off a series of Earthquakes in order to convince Zeus to do... what? Meanwhile, Herry defends Granny from the Giant, Antaeus, while the rest of the team dashes off to rescue Zeus.
When Eris comes to town and makes havoc with a magic cell phone ringer, the heroes and the gods themselves are affected. While Odie hurries to find the goddess Harmony, the others must stop Eris herself. But will their own arguments get in the way? If they can't stop her, Eris will have made Cronus' job a whole lot easier!
Cronus hires the thief Autolycus, Hermes' son, to steal the arrow that Hercules once used to slay the Hydra.
With the help of Morpheus,the god of dreams, Theresa creates and sends a vision to Cronus; a valuable part of Jay's plan to lock Cronus away forever. But Cronus learns the truth about vision and unleashes the Oneiroi, black winged demons. The creatures put Theresa in a terrorizing dream. Will she be able to wake up and save her friends when the tables turn on them?
After Neil pranks Odie, Odie, in a fury, leaves town to gather his thoughts. On a lonely country road, he gets gas at a very antique looking station run by a peculiar old man. This is only part of the mystery. After going on a ways, he ends up in Gizaville, where a party has started. He joins, feeling the bliss of being surrounded by many pretty girls. But then he meets Josephine X, and after flirting, realizes she may not just be a pretty face. Under that heart-stopping exterior is the Sphinx, and she won't let him leave until he solves her riddle. With the help of Valerie, a girl he met at the party, and his friends, who have come to rescue him, Odie eventually is able to figure out the Sphinx's riddle. The town is free, and the heroes have saved the day once again.
When Pirithous escapes the underworld to take revenge on Hercules for abandoning him in Hades Chair of Forgetfulness many centuries ago, he plants a tree with poisonous (and attractive)nectar close to the God's secret hideout. The tree attracts the bees that gather honey for the Ambrosia Gods and Goddesses eat. Now, the bees they begin to bring back the tainted honey to the God's garden, and the gods and goddesses are suddenly acting strange; almost like they're at their forgetful 90's. Now it's all up to the seven heroes to stop Pirithous and, now, Hercules!
When Cronus calls upon three dead cyclop relatives to create a weapon of great power that will increase his influence over time, Polyphemus is found wandering around their ancient caves. Yes, that's right, Polyphemus lives, but is blinded and has to wear the Eye of the Storm in his eye socket to help his sight. When Polyphemus discovers Cronus' plan, he sends a message to Odie and the rest of the team but it captured by Cronus soon afterward. Suddenly, it's up to the seven heroes to save their friend and destroy the one weapon that could lead to their defeat.
Jay has been feeling the strain of being a leader lately, and he's fighting emotional stress. After flipping out at her when she beats him at chess, Theresa demands to know what's wrong. He tells her about how it's all so hard, and she tells him not to worry, because there are six heroes to watch his back, so he's never alone. She advises him to take a break,and maybe go sailing. But it's her who starts to brood when Odie and Jay make a robot version of Cronus, who can memorize their movements and who's controlled by remote.At least, for a little while. It proves to have a few defaults when he nearly crushes Theresa's hand, so Odie designs some new safeguards. Theresa tells Jay of her worries, but he waves them off, having finally relaxed enough to take her advice and go sailing. But when Odie, Archie, Neil, and Atlanta are heading to the secret wing of the school to install the new safeguards in Cronus 2.0, they realize that their robot has left the training grounds... with Theresa! Now he's using her as bait to pull the heroes into a game, and a deadly one, especially since their only hope to defeat him is to draw out the real Cronus himself...
As the Christmas holiday draws near, Zeus is captured and challenged by Cronus to a chess game. The stakes are high though as Zeus' chess pieces are actually of the seven heroes. The horrible thing is that, if one of the heroes get check mated on the board, they get check mated in real life too! As the heroes race around to find a Cornicopia that grants wishes so they can get Zeus back, Zeus is playing for their lives.
Cronus frees King Sisyphus from his punishment in Tartarus and provides him with a metamorphosis ability which will enable him to become any of the heroes so that one of them can take Sisyphus' place. The heroes must help Thanatos recapture Sisyphus.
Cronos gets a hold of Theresa's pendant. He now has a key to get into the magical school! As he prepares for his attack, the heroes try and find a way to close the portal and stop him.
Hoping to find some lost papers or inventions by Daedalus, Odie discovers that Daedalus is still alive. Thats good right? Wrong! The heroes soon find themselves trapped in one of the genius' most diabolical mazes!
Neil is no longer the fairest of them all when Adonis appears and the ancient rivalry between Persephone and Aphrodite over him is revisited. The jealousy in the room is so intense that it attracts the goddess Envy... and she decides to turn it up a notch when she has Adonis turn nasty towards Neil!
The river god, Scamander, was defeated by Achilles millennia ago. Now he wants to even the score by destroying Archie. Its sink or swim for our water fearing hero, as Archie soon finds himself in very hot water.
Neil's growing arrogance and good fortune draws out the goddess Nemesis, who decides that he needs to be taught a lesson. She curses him with the Midas Touch, and now everything he touches turns to gold. Meanwhile, Jay and the others are drawing Cronus into a trap. Just as they are about to capture him, Neil messes it up...big time...by turning his friends into golden statues.
A mysterious Phantom is attacking the gods and draining all their powers. Most be Cronus, right? Wrong. It's Theresa! She's been pushed to far by the gods and now her powers are out of control. She just wants her old life back... but will she lose her mind in the process?
With the powers of the Olympian gods at her command, Theresa defeats Cronus...and now she's after Zeus! It's a battle that rivals any Zeus has faced before and his brute force can't seem to stop her but maybe her friends can.