After years of being sheltered from the human world, the Turtle brothers set out to win the hearts of New Yorkers and be accepted as normal teenagers through heroic acts. Their new friend April O'Neil helps them take on a mysterious crime syndicate, but they soon get in over their heads when an army of mutants is unleashed upon them.

Peppermint Spiral follows Angel, a high schooler confronting an intimidating, ghastly creature while facing his family’s high academic expectations. As the pressure becomes overwhelming, Angel starts a dangerous path towards relief, rather than asking his loved ones for help.

When a mysterious toy company seeks to profit off the turtles' new hero status, the brothers follow the clues to New Jersey and make a shocking discovery in this all new original short.

Donnie, Raph, Leo, and Mikey are back for their next adventure with Master Splinter, the Mutants, April, and a new villain they have to face: The Shredder.