Continuing the tale from the hit Nickelodeon series, Raphael, Michelangelo, Leonardo and Donatello are back in action and up to their teenage antics in this comedic adventure that raises the stakes higher than ever before. The Turtles are put to the test when a mysterious stranger named Casey Jones arrives from the future to warn the mutant brothers of an impending invasion·of the most dangerous alien force in the galaxy - the Krang! Can the team rise up to become the heroes they are destined to be, or will their teenage foibles get the better of them? What unfolds is the most adventurous, emotional, and epic story ever told of the Teenage Mutant Ninja Turtles.