A game warden moves his family to Lake Placid, once the site of deadly crocodile attacks. Locals assure him the crocs are gone, but his mischievous young son finds a few baby crocs and begins feeding them. They quickly grow into very big adults and start attacking the game warden's family and nearby town.
A giant alligator goes head to head with a giant Anaconda. The town sheriff must find a way to destroy the two monsters before they kill the whole town.