The movie follows the Teenage Mutant Ninja Turtles—Leonardo (voiced by Pete Ploszek), Michelangelo (voiced by Noel Fisher), Donatello (voiced by Jeremy Howard), and Raphael (voiced by Alan Ritchson)—as they battle their longtime nemesis, The Shredder, and face new threats.
In the climax of the film, the Turtles discover that The Shredder (played by Brian Tee) is working with an extraterrestrial warlord named Krang (voiced by Brad Garrett). Krang has plans to bring his Technodrome, a massive war machine, to Earth from another dimension.
To stop Krang’s invasion, the Turtles, along with their allies April O’Neil (Megan Fox), Vern Fenwick (Will Arnett), and Casey Jones (Stephen Amell), devise a plan to infiltrate the Technodrome and disable its portal device.
In a high-stakes battle, the Turtles face The Shredder, his mutant henchmen Bebop (Gary Anthony Williams) and Rocksteady (Stephen Farrelly), and Krang’s forces. With teamwork, determination, and the help of new allies, the Turtles manage to thwart Krang’s plans and send the Technodrome back to its dimension.
The film ends with The Shredder being taken into custody, Bebop and Rocksteady escaping, and the Turtles, April, Vern, and Casey celebrating their victory. The Turtles are acknowledged as heroes by the public, and they continue their vigilant watch over New York City.
In the final scenes, the Turtles are recognized for their bravery, and Casey Jones expresses his admiration for them. The film concludes with a sense of camaraderie and the Turtles embracing their roles as defenders of justice.
In summary, “Teenage Mutant Ninja Turtles: Out of the Shadows” ends with the Turtles successfully thwarting Krang’s invasion, defeating The Shredder, and being celebrated as heroes, setting the stage for further adventures.