Elon is a hamster scientist who lives in a dump yard. He tries to fit in the local rats’ community but nobody takes him seriously. The rats aren’t interested in his scientific experiments which often fail in practice.

One day Elon hears a crash. In his garden he finds a crater and a damaged robot inside. How did he get here? Elon fixes the robot and finds out that he fell from a spaceship which is going to prepare Mars for colonization. But the ship leaves in three days.

And that’s how Elon’s great adventure starts. Will he manage to get the robot back to his ship before it leaves with all the robot’s friends?

3-2-1 Start! Is an adventurous animated fulldome film about courage and wits you need to have to get in space and back.