Teenage Mutant Ninja Turtles (2003) (2003)

S1E14 Notes from the Underground (2)

Upon stumbling upon a deserted subterranean Foot Genetics Laboratory, the Turtles face off against mutated Digging Creatures that were once human. Instead of fighting them, they decide to lend a hand, helping these creatures as they work to fix a malfunctioning Force Field that protects their lair. Together, they navigate the challenges of the underground world, forming an unexpected alliance in the process.