After meeting a good-natured inter dimensional time traveler named Renet, the Turtles become unstuck in time and go spinning into the past Meanwhile, Shredder and Krang finally meet up--but will they be able to overcome their differences and join forces?--and Old Hob has perfected the art of making mutants Plus, when a new invention goes haywire, the Turtles are sent to a whole new type of New York City. One with a whole lot more ghosts--and Ghostbusters

Collects Turtles in Time, issues #38-44 of the Teenage Mutant Ninja Turtles ongoing series, and the TMNT/Ghostbusters crossover.