In a space station many light years from Earth, Jakob lives with Grandma, a robot chicken named Derek, and ToolBot, a robot. One day, Jakob finds an enormous rusty, broken rocket in a hangar. "That's not a rusty rocket!" Grandma says excitedly. "It's the SPACE TRAIN!" She tells him that the Space Train used to travel across the universe "faster than the fastest spaceship." Jakob desperately wants to fix the train. Can they do it?

King Viking decides to find another planet where he can carry out his evil plans without interference, and everyone in Animal Town is delighted; then an alien appeals to Super Rabbit Boy for help and he blasts off to once again confront his enemy--but his level one rocket may not be up to the task.