Earth (Elementary, My Dear Turtle) (1987 TV series)

The visit Earth  in an alternate timeline in the  episode Elementary, My Dear Turtle/Gallery.

In this timeline, Earth has been taken over by James Moriarty, after he has built his time machine. Sitting in a convertible car, James Moriaty is greeted by cheering audiences.

On this alternate Earth, the Ninja Turtles encounter alternate versions of April O'Neil, Burne Thompson and Vernon Fenwick.

The Ninja Turtles end up engaged in combat with James Moriaty's armed forces. , however, manages to grab the atomic clock, allowing them to return to the alternate timeline.