The Train World is busy building railroads between continents.
Duke returns to the Train World and lies that Kay is lost due to an accident.
Kay wakes up after a long rest and doesn't know who or where he is.
Viruses spring up and begin to infect the inhabitants of the Train World as the power becomes weaker.
Kay, Alf, Victor, Genie, Maxie, and Gary are going on with their daily tasks enjoying a peaceful day at the Railwatch Headquarters. Then, a sudden emergency occurs! There is a report that Mikhail is speeding towards the Energy Volcano.
Today is the grand opening of the Water Park in WaterLand, but a shark suddenly spoils the event!
Mountain Land's lumber camp railer Kevin starts dreaming of becoming one of the RailWatch members after seeing Alf, a RailWatch member rescue a railer.
Windland's Novice Pilot's bag is gone! Without a bag, you can't collect windland energy. Detective Genie comes out to solve the difficult case.
Even the youngest Railwatcher Maxie has worries of her own. How come Kay, Alf, Victor, and Genie all have unique talents, but Maxie doesn't?
Victor comes across an edelweiss, which does not usually grow in sizzling hot places, in the field of Windland. Victor decides to plant the edelweiss in a pot and look after it carefully.
Gary and Dolo are once again busy playing chess with each other. The mischievous trio, Mos, Dos, and Duke get a special magnetic hat from TrainX. They come up with a daring plan to sneak into the Railwatch headquarters and steal energy balls.
The mischievous trio Mos, Dos, and Duke find an odd looking camera on the street. Dos takes a picture of Igor who was passing by. After the photo, the chronically grumpy Igor suddenly turns into a kind soul. Maybe this is a magic camera!
Alf does not know how to say no. As always, he is having a busy day helping trains and Railers all over RailWorld. However, there seem to be an unusual amount of trains looking for Alf's help today.
Railwatch Victor cares about the railers deeply, but on the surface he seems very cold. Windland railers, startled by Victor's cold words, are so scared of him. Then, a sudden gust of wind blows, and collapses the Windmill. Only Victor can save them now.
Kay is afraid of water and envious of Duck, a train that can move freely on water. So, Genie makes "Storm Slider," a hover-board that enables him to run on water.
Maxie, who is afraid of bugs, must save the fireflies Mos, Dos, and Duke captured inside the Energyball Capsule!
When Selly looks away for one second, Becky suddenly disappears!
During his mission to climb up to a high mountain and fix a weather radar, Alf gets injured. His old backpack launcher is completely broken too. Genie creates a new shiny equipment, Spider Pack, to replace it.
Reckless railer 'Luca' is a well known troublemaker. Everyone tries to catch him, but no one can seem to keep up.
A Waterland train, Jose, always puts safety first. As usual, he was holding a safty education to the Railers, but with an unexpected accident, a Railwatch badge gets stuck on Jose. The Railwatch badge's special power allows Jose to transform from a train to robot, just like the Railwatch members.
Seeing Victor work so hard with his mine excavation work, Genie develops a Wild Hammer Drill that can make his work easier.
Today is RailWorld's yearly Firework Festival Day. Genie's firework creations of all the beautiful lands light up the night sky. However, there are someone not happy with Genie's fantastic fireworks.
Scientist TrainX does not usually show himself. Mos, Dos, and Duke continue to fail at bringing back the Energyball, so Train X takes matters into his own hands.
Genie continues to fail at Energy Combination, but with her experience at the Firework Festival, she succeeds at creating the "Roasty Flamy." With the warm Roasty Flamy, Moutain railers shivering with the cold weather will be able to enjoy a nice toasty day. Of course, Dos, Mos, and Duke would not miss out this chance for trouble, vigilantly looking for the opportunity to steal the Roasty Flamy.
Kay accidently ruins Victor's precious edelweiss. Thinking a replacement would cool things down, Kay heads toward a dangerous cliff area in Mountainland to find one.
Moris is sick and tired of living in the freezing cold Mountainland. Then one day, when Alf visits Moutainland, he learns of the warm Sunnyland and insists on moving there.
A spooky rumor about a ghost begins to spread in Railworld.
Paul, a new railer, must overcome his fear of slides in order to collect energy.
Stuck in an elevator, Alf must endure Gary's recurring, old tales.
Kay and Duke battle it out for the title of fastest train in Railworld.
When Augustine goes missing, Genie and Selly go searching for her. But Augustine isn't the only thing missing, Johnny's maracas are also nowhere to be found!
When Tom finds him self out of commission and unable to make his famous bread, Jeanne volunteers to help out. However, not everyone is so pleased with Jeanne's baking.
When Emma becomes ill and can't make her delicious pies, Genie invents the Almighty Oven to fill in.
After Rich is praised for watering Victor's flowers, he goes out of control to get more compliments!
When Genie invents new growth vitamins, the evil duo Mos and Dos set out to steal it.
When Duke suggests that the troublesome trio be broken up, Mos and Dos hatch a plan to keep the group together.
When Alf and Maxie are caught on thin ice, the gang must resort to Duke's help to save them.
After Maxie disregards a mysterious package, havoc ensues in an unguarded Watchtower.
After Gary walks off during a camping trip, Maxie and Kay worry they've hurt his feelings.
While the Troublesome Trio is out to steal some energyballs, Leo "the prankster" gives them trouble.
When Leo repeatedly oversleeps and shows up late, Genie invents a special watch to help him stay on time.
After Alf hurts himself on another dangerous job, Genie decides to invent him a pair of wings.
After Genie temporarily loses her memory, the Troublesome Trio unveils a new device in her absence.
Unknowingly, the Troublesome Trio saves the day in their new hot air balloon.
The Troublesome Trio is at it again, this time offering train washes to railers.
When Johnny feels upset about his birthday, the gang gets together to cheer him up.
After saving Kay from drowning, the Troublesome Trio is given a "special card": one that can be used when they're in need of Kay's help.
After Joseph stirs up trouble with his reading addiction, he and Andre hatch a plan to create a mobile library.
The Railwatchers use their special talents to help Eddie's team prepare for the upcoming "Energy Ball Competition".
A huge explosion causes Master X and Mos to switch bodies!
When Louie's sculpture is ruined by mysteriously appearing tornadoes, Alf must use Genie's new Blending Ball to save the day.
When Railworld suffers from a drought, Genie invents a "Floaty Spray" to help out.
As the Shadow Energy approaches, Victor uncovers a long lost secret from the ancestors.
When the Shadow Energy collides with the Energy Volcano, an unexpected combination of the five good energies is discovered.
As Genie races to finish the Rainbow Balls, Tony, the secret guardian of Mountainland, explains how the Energy Volcano is the last weapon needed to defeat the Shadow Energy.