Man-eating crocodiles return to the lake as two males and one aggressive female crocodile, which is protecting her nest, wreak havoc on the locals.

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.