After shredders defeat, the turtles and what remains of the foot clan have a truce with one another, the turtles have fought many foes, they fought other mutants, the kraang, they went into space and fought aliens and went back in time and stopped the triceratons and their black hole generator, they fought a shredder and kraang from another universe, stopped the super mutant shredder and faced off a demon from the underworld, but now they face the Kraang but they Kraang are not alone...