The Teenage Mutant Ninja Turtles are the world's most fearsome fighting team. Their sensei, a rat named Spinter, instructed them in the ninja teen arts. Leonardo leads the team, Donatello "does machines," Raphael is cool but also a bit crude, whereas Michaelangelo is a party dude. When their archenemy, the evil Shredder, attacks, the Turtles cut him no slack.
In conclusion, the Teenage Mutant Ninja Turtles are heroes in a half-shell.