Tired of the constant failures of the Dark Turtles he created, Darius Dunn decides it’s time to build a better mousetrap - - or gang of henchmen, if you will. Turning his technological know how to the task, Dunn creates the TechTurtles…and what better way to give them a test run than sending them after the now obsolete Dark Turtles? Reeling from the high tech onslaught of the TechTurtles and desperate to survive, the Dark Turtles have no choice but to turn to their enemies, the Turtles, for help. In the heat of battle, the Ninja Turtles teach the Dark Turtles what honor and sacrifice is truly about. After this battle, things will never be the same.