Nickelodeon’s “Teenage Mutant Ninja Turtles” is mutating once more, Variety has learned.

The kid network will be rebooting its current CG “Teenage Mutant Ninja Turtles” series as a 2D animated series with the title “Rise of the Teenage Mutant Ninja Turtles.” The network made the announcement at its upfront presentation in New York on Thursday afternoon.

“The Turtles is a property that has reinvention in its DNA, which keeps it fresh and relevant to every new generation while satisfying the demand from its adult fans,” said Cyma Zarghami, president, Nickelodeon Group. “’Turtles’ has been an incredibly important franchise for us since we reignited it five years ago, and we’re excited for the new series to take the characters in a different direction with more humor, a younger and lighter feel and all-new dimensions to explore.”

The new 2D series is co-executive produced by Andy Suriano (character designer for the critically acclaimed Adult Swim series “Samurai Jack”) and Ant Ward (supervising producer, current “Teenage Mutant Ninja Turtles”) at Nickelodeon in Burbank, Calif.

The CG series will air one last season starting Sunday, March 19. Nickelodeon has ordered 26 episodes of the 2D reboot to air starting in fall 2018.

“Rise of the Teenage Mutant Ninja Turtles” will follow Leonardo, Raphael, Donatello and Michelangelo on all-new adventures as they seek to unlock the mystical secrets of New York City. From the tallest skyscraper to the dankest sewer drain, the Turtles will encounter absurd new mutants and battle bizarre creatures all while enjoying their favorite slice of pizza. Tapping into mystic, ninja powers they never knew existed, the four brothers must learn to work together and navigate the perils of the modern age and hidden realms in order to fulfill their destiny to become a team of heroes.