Join Chris and Martin as they meet up with a mob of Red Kangaroos, get their car keys stolen by a joey and then have to figure out how to get them back from the tricky little guy! The Kratt brothers jump into the life of kangaroos, and quickly discover the physical and social differences between kangaroos and humans. Viewers learn just how high and far a kangaroo can jump, the role that kick-boxing can play in determining the alpha male and other important behaviors that kangaroos use to keep their social groups together and safe.