Fan Casting The truth about Kevin! in Teenage Mutant Ninja Turtles: Rise From The Sewer

Kevin and his "henchmen" are revealed to be little more than robotic suits worn by brain-like alien creatures, lead by their commander, named Krang. He and Stockman plan to use the mutagen to created a mutant army, as well as powering Krang's secret weapon, The Technodrome.