In order to earn her Animal Appreciation badge, Bessie Higgenbottom adopts a dog where she names him Happy, and goes to enter in a dog show, but he runs away because he didn't want to be in it in the first place. Bessie apologizes to Happy and he returns. Bessie wins the dog show when it is revealed that Portia's "dog" Precious is really a rat.
Bessie is eager to ride a new ride at the amusement park called "The Punisher", but is unable to because she is not tall enough to ride it. Every attempt she makes to get in fails. She has to go on the "stupid teacups" now, but Happy shortens the height checker, allowing Bessie to get on the ride, which is accidentally set for two times.
When Gwen and Portia plan to go out, they trick Bessie and Penny into babysitting Gwen's five younger siblings. However, while babysitting, Penny and Bessie lose the baby. They chase the baby, while Happy takes care of the other kids. However, after they finally catch the baby, Bessie and Penny are kicked out of the house by Portia and Gwen, who treat themselves to a delicious meal.
Bessie is eager to earn the Happy Camper badge. However, while going on a camping trip, Penny tells a scary story about a nasty girl who was abandoned in the woods, which leads to Portia running away terrified and getting lost in the woods. A bear tries to attack Portia, but she is saved by Bessie, which allows her to earn the Happy Camper badge.
In order to earn the Mad Scientist badge at the Honeybee Science Fair, Bessie builds a robot she names Emily. A jealous Portia goes inside Emily, controlling the robot. Meanwhile, Ben and Happy become angry at Emily and team up to destroy her, with Portia being sprayed by black ink during one attempt. Emily goes insane in the Science Fair, breaking every project. As Bessie is about to be disqualified from the science fair, Ben and Happy storm in, having found Emily's brain. They put it back in Emily and Portia is found inside the robot. Bessie wins the Mad Scientist badge.
Bessie wants to join Portia's band, "The Pretty Pretty Princesses", but Portia will not let her because of her lack of musical talent, so she becomes the new drummer for Rocky's band, "The Integritones", where she and Portia both rock the whole bay area!
It's Mother's Day and Bessie learns that Happy does not know where his mom is. Bessie goes around town looking for her, but once she is found, she starts to teach Happy to break Bessie's rules.
The Honeybees go on a field trip to the Science Exploratorium. Penny has to go to the bathroom while the other Honeybees are watching a short movie. Bessie goes with Penny to look for one, but they unintentionally get lost in one of the exhibits.
Bessie and Penny start crashing bat mitzvahs after attending Penny's neighbor Zanni's, and set their sights on the ultimate bat mitzvah being held by Portia's cousin, Chelsea.
Bessie finds out that every superhero has a secret weakness. When she concludes that the Mighty Bee's weakness is zucchini, she plans to get rid the whole bay area of the foul vegetable.
A fortune teller convinces Bessie that she can see the future, but her sunny predictions for Penny's birthday party are way off the mark, so she attempts to make things right.
Bessie tries to learn Portia's secret by becoming a reporter for the Hive Herald, but comes to the ridiculous conclusion that Portia is an alien. The truth: She has laryngitis.
Bessie begins to follow the advice of Fingere, Finger's evil French cousin, after Finger is injured in an origami competition which leads her and Happy into mischief to win the Origami badge.
Bessie's mom becomes the troop leader and stops giving out badges because of the Honeybee structure and lack of self-expression.
Portia's mom takes Bessie as her apprentice to boost her cosmetics sales, but Bessie's zeal will give her much more than she anticipated.
Bessie puts Happy on a strict health food regimen and workout schedule. Happy is not excited about this and he does not understand that Bessie only wants what's best for him, and leaves Bessie for Portia.
Bessie is hosting a foreign Honeybee, Sissy Sullivan, who comes all the way from Boston. At first, the girls seem to get along perfectly fine, but when Bessie realizes that Sissy is better than her at everything, it inspires her competitive spirit.
Penny develops a special connection with an animatronic kangaroo from a pizza arcade.
Portia's locket disappears during her birthday party, so Bessie goes on the case to try to find it.
Bessie accidentally farted during a troop meeting (due to her lactose intolerance) and is banned and shunned from the Honeybees which in turn bring them horrible haunting situations and they try to get Bessie back. And Bessie reveals a badge that has never been given out before or long gone, the Toot Toot badge.
Bessie finds out Happy is leading a double life and going out every night to a bar.
Bessie uses Happy in her magic act, but he soon gets bored and sneaks off without her knowing, causing a wild menajire to escape from the hat.
Bessie tries to catch the chicken pox to earn the Chicken Pox badge. When she learns Ben has an immunity from her Mom, she tries to use him to get the chicken pox. In the end, it turns out Bessie is the one with the immunity, and now she must take care of the sick-as-a-dog Ben.
Bessie loses a bet and must let Portia and Gwen run the Hive for the weekend. However, when they refuse to give up the Hive after the ending time, Bessie, Ben, Happy, and Penny go to drastic measures to kick them out, even unknowingly using an angry skunk in the process.
Portia finds out that Bessie's middle name is cursed and whenever somebody says it, something bad happens. It soon becomes a problem after she spreads it around all of San Francisco.
Bessie sets out to uncover what's wrong with the latest batch of taffy. She finds out that it's fake honey making the taffy taste different.
Bessie and Happy visit the doctor and veterinarian. Bessie is horrified to learn she is due for a booster shot.
Bessie wins the chance to have tea with Miriam Breedlove, the founder of the Honeybees, but Portia and Gwen sabotage her chance by feeding her false information and odd etiquette.
Bessie helps Penny find her hidden talent to play ping pong.
Bessie and the Honeybees go on a trip to a town to learn about the pilgrims, but things go wrong when the pilgrims accuse Portia of being a witch when she disregards their rule against technology.
Happy takes Bessie's glasses and trades them for a bone. Bessie is unable to see clearly as she stumbles through the city to buy a new pair, leaving her in serious danger from Portia and Gwen, not including a pack of pirranas, which Happy must repeatedly save her from. In the end, he loses his bone to save Bessie, and Bessie finds a replacement as thanks.
The Hippie cooks the wrong recipe. After Ben and Happy eat his tasty treat, they switch bodies, where Happy uses this to get vengeance on Ben. In the end, Bessie and the Hippie switch bodies, and Ben, Happy, Bessie, and the Hippie start to make up one big, weird, body.
Bessie tries to get Ben to break his rule about food not touching other foods. In the end, he gets over it, and he and Happy try to get Bessie to get over her claustrophobia with her methods.
The Honeybees become preoccupied with playing a new video game and neglect their responsibilities.
Bessie wants to have professional photos taken with Happy, but she must talk the photographer out of quitting his job.
Bessie cannot see the hidden image in a magical eyeball poster she receives as an award.
Bessie gets carried away with her new macramé hobby.
Bessie lands the ice-cream man in trouble with his boss when she reports that he ran a stop sign. As a result, he leaves the neighborhood and the children suffer in the heat. Will Bessie solve this problem?
The Honeybees must team up in order to take on a rival scout troop from Oakland for use of the recreation center.
When Bessie dresses up as a cat for Halloween, she gets so into character that Happy can just barely resist chasing her.
Bessie gets an abnormally large filling in her tooth and discovers she is now a lean mean radio-signal receiving machine.
Bessie is worried that she has too much bad karma, so she kills everyone with kindness in order to get rid of it.
Bessie tries to get stubborn Happy to take a bath.
Bessie takes Happy on a tour to Alcatraz to teach him not to sneak off.
Bessie and Happy accidentally drink Hippie’s magic hair potion and end up with massive amounts of hair and fur.
When Bessie wins a radio contest and gets two tickets to a sold-out concert, everyone vies to be her Plus One.
When Bessie accidentally drops a load of taffy, Mary Frances gives Bessie her first ever bee-merit.
Bessie decides to house a swarm of bees in exchange for one harvest of honey.
Millie asks Bessie to turtle-sit Chester Turtleton while she goes on a trip. He soon finds out that life with Bessie is far more exciting than the life he knows with Millie.
While playing pirate, Bessie and Happy find gold.
Bessie is determined to see some cute little puppies she found on a popular webcam.
Bessie runs for dogcatcher with some stiff competition.
Both Bessie and Happy get caught up in a game of Jinx.
Bessie tries to prove to Ben that boggiemen don't exist while earning her Monster Squad badge.
Bessie sets out to get her dollar back from a bending machine.
Finger befriends another finger named Digit.
Bessie wants to plan her own "surprise" birthday party.
Happy's doggie identity chip makes him a little too well-behaved.
Bessie has to save Penny from a mob of gangster fish.
Bessie, Penny, and Happy use a time machine to find the rest of the body after they find a dinosaur bone in the park.
Happy doesn't want the missing half of his ear.
Bessie bonds with an elderly former honeybee.
Bessie tries to prove to the other Honeybees that unicorns exist.
Bessie and Portia compete to do a better job cleaning up the stretches of highway that they each adopted.
Ben mistakenly thinks Bessie's making Happy her Mighty B sidekick instead of him, so he decides that he'll be her arch nemesis: the Hurtful Hornet. With the help of Mr. Pants (now Mr. Evil Pants), Ben turns to the dark side. Meanwhile, Bessie and Happy try to figure out the identity of the Mighty B's arch-nemesis after the Hurtful Hornet left his initials - H.H. - on sticky notes.
Bessie discovers someone has been doing bad deeds under her identity. What's worse, everyone - including Ben and Happy - all believe her to be guilty, as the evidence supports Bessie doing these things. As a result, she is suspended and later expelled from the Honeybees by Mrs. Gibbons. With this newfound free time on her hands, Bessie must find out the mastermind who framed her, and why.
Bessie convinces Ben to join the Honeybees' male counterparts, but he quits when they are too rough for him, and Bessie has to take his place in disguise.
Happy launches himself and Bessie into outer space 400 years into the future to avoid a flea-dip.
Bessie and Happy chase a purse-snatcher so that she can earn her Junior Policeman's Badge.
Happy hopes to collect a bounty by catching Bessie after she accidentally trips a fire alarm.
Bessie must come up with some funny jokes to earn her Stand-up Comedy Badge.
Ben, Happy, and Hippie form a men's-only club that excludes girls, including Bessie.
Bessie needs a strike to earn her bowling badge.
When Portia accuses Bessie of being too much "like a robot", she takes it literally.
Bessie and Happy get into an argument when they are about to celebrate the first anniversary of their friendship.
