The Teenage Mutant Ninja Turtles suffer a crisis of faith in the film’s newest trailer.

The reptilian superheroes consider turning human in the latest teaser for “Teenage Mutant Ninja Turtles: Out of the Shadows” after learning that a magical concoction — purple ooze — can not only turn humans (like Bebop and Rocksteady) into animals, but animals into humans.

Leonardo, however, never wavers, telling Michelangelo, Donatello and Raphael, “We’re turtles, whether you like it or not.”

The trailer also offers a closer look at Stephen Amell’s hockey-masked vigilante Casey Jones in action, the villain Krang, and the transformation of Bebop (Gary Anthony Williams) and Rocksteady (WWE’s Stephen “Sheamus: Farrelly) from humans into mutants.

The baddies are even bigger in the second installment of Michael Bay’s franchise as supervillains Shredder and mad scientist Baxter Stockman (Tyler Perry) team up to wreak havoc. The gang must also contend with the warlord Krang (Fred Armisen).

The Paramount film stars Megan Fox, Will Arnett, Laura Linney, Johnny Knoxville and Tony Shalhoub. David Green directed the sequel from a script by Josh Appelbaum and André Nemec. Bay, Brad Fuller, Andrew Form, Galen Walker and Scott Mednick produce.

“Teenage Mutant Ninja Turtles 2: Out of the Shadows” hits theaters on June 3.