Rats on a Train
Season 1, Episode 4
Airdate March 19, 2012
Prod. code TBA
Written by Ken Blackstein
Directed by Victor Gonzalez
Episode guide
Leo's Jam
Exoskeleton vs. Grandma
Rats on a Train is the 4th episode of Lab Rats. It aired in the U.S. on March 19th, 2012.


The Lab Rats get their first mission to stop Davenport's hi-tech super fast train from speeding out of control. Leo sneaks along, but when the Lab Rats discover he accidently discarded the braking system they were supposed to install, they must improvise a way to stop the train before it crashes into a nearby town.


Meanwhile, Tasha is given her big break at the TV news station when her boss asks her to cover the runaway train, but she fails and when the train stops by Adam Bree Chase and Leo, she finds Leo and grounds him for two weeks