Scott Kinney is an American geologist monitoring a local volcano when the Supergator, a Deinosuchus recreated from fossilized, preserved DNA escapes from a secret bio-engineering research center/laboratory. Along the way, it eats many people, including 2 lovers, 3 drunken teens, 3 models, 2 tourists and a fisherman. It also eats Alexandra Steven, and Ryan Houston.

Scott Kinney is an American geologist monitoring a local volcano when the Supergator, a Deinosuchus recreated from fossilized, preserved DNA escapes from a secret bio-engineering research center/laboratory. Along the way, it eats many people, including 2 lovers, 3 drunken teens, 3 models, 2 tourists and a fisherman. It also eats Alexandra Steven, and Ryan Houston Kinney joins forces with another scientist and a Texan alligator hunter . They pursue the monster as it heads down river intent on destroying a luxurious resort packed with hundreds of tourists. Guns and other weapons have no effect on it at all, so they plan a trap for it using a fake volcano. They lure him on to it, with the Texan alligator hunter as live bait. Supergator gets him and is blown up with poisonous gas, strong flames and a shotgun.

Dinocroc vs. Supergator is set on a tropical island where two genetically altered giant creatures have broken out of their cages, a giant Crocodile & a giant Alligator devour any scientist in their path as they break free of the compound & into the lush tropical jungle. On the other side of the island is a holiday resort, Sheriff Charlie Swanson (John Callahan) is the local law & becomes concerned after getting reports of people going missing & personal items covered in blood being found. Meanwhile scientist Mark Conrad (James C. Burns) is on the island investigating the research laboratory since it was only meant to be conducting growth experiments on plants, he soon discovers what they were really up to. With the giant Alligator & Crocodile eating anyone they find its up to Conrad, Sheriff Swanson & his daughter Cassidy (Amy Rasimas) along with big game hunter the Cajun to stop them & expose the truth...

When the President learns that domestic terrorists have skyjacked the passenger jet her brother is flying, she must choose between family and the safety of the people in the cities below