Teenage Mutant Ninja Turtles (1987)

S3E30 Leatherhead: Terror of the Swamp

As Raphael flips through the Turtles' photo album, reminiscing about old times, their amphibious friends in the Florida swamps are facing a grave threat. A mutant alligator named Leatherhead is wreaking havoc, instilling fear among the local frog population.