Rise of the Guardians (in training)

The turtles make four quirky human friends who are really mutants with special powers. And as the turtles engage in their adventures, these four humans secretly go about their duties as Guardians in training for the Utroms in their war against the Kraang. Characters & OC's 18 plus instead of 15. Romances, fluff, rivals, action, etc. Rated M to be safe. AU 2012 Series.