Supergator is a Phobosuchus Riograndensis (Deinosuchus) prehistoric alligator recreated from fossilized DNA that escapes from a secret bio-engineering research center. Along the way, it eats many people, including 2 young lovers, 3 drunk teens, 3 models, 2 tourists, and a fisherman. It also eats Alexandra Steven, (Mary Stiefvater) and Ryan Houston (Josh Kelly). At the end The Supergator gets him and is blown up with gas, flames, and a shotgun.
In this film, Supergator serves as one of the two main antagonists of the film, the other being it's arch enemy, Dinocroc.