The Final Conflict

'The Final Conflict is issue 12 of the TMNT Adventures, and was published in August 1990.

Storyline
Maligna's insectoids arrive to Hirobyl while Leatherhead, Trap, Wingnut and Screwloose assist the turtles. Following the turtles defeating the insectoids, Cherubae uses the Turnstone to send Shredder to an Earth prison, Krang to Morbus and Bebop and Rocksteady to an Eden planet. She then wishes away the Turnstone what seems to be out of existence. She then gives Krang's spacecraft to Leatherhead, Trap, Wingnut and Screwloose while Cudley carries the turtles back to Earth.