Teenage Mutant Ninja Turtles (2003): Season 2

The Turtles find themselves teleported to the alien world of D'Hoonibb, where they immediately are caught up in a war between the Triceraton Republic and the Galactic Federation. The Turtles end up on the Triceraton home world, and after saving Honeycutt, are teleported back to Earth by the Utroms. The aliens reveal themselves to be benevolent and reunite the Turtles with Splinter. In the wake of the Shredder's defeat, a gang war erupts over control of his lost territory by the remainder of the Foot Clan, Hun and the Purple Dragons, and the New York mafia, aided by Baxter Stockman. Shredder is revealed to have survived yet again, and Karai's loyalty to her father conflicting with her honor becomes a critical dilemma for her.