Whoa, dude! Worlds collide when the Turtles from one dimension meet the Turtles from another dimension! What the shell is going on? The two Turtle teams must work together to find the Technodrome and undo this multi-dimensional mess! Meanwhile, Shredder sets out to track down his counterpart, Ch'rell, who devises a master plan to travel back to the Prime Universe to wipe all the Turtles out of existence! Get ready for two times the Turtle Power as the teams seek guidance from two versions of Splinter, meet classic characters like Casey and April, and face a slew of enemies including Krang, Hun, the Foot Soldiers, the Purple Dragons, and even Bebop and Rocksteady!