Set in the bayous of Florida, a photographer (Sam Elliott) finds himself inadvertently spending the 4th of July with the wealthy family of a controlling wheelchair bound patriarch (Ray Milland). But something very strange is happening. The wildlife (frogs, snakes, lizards, turtles, gators etc.) are turning deadly and attacking the humans in the area. Directed by George McCowan, this is one of the first of the so-called "eco-horror" films where animals and/or nature turn against man for his sins against the environment. For a horror film, it's incredibly slow moving and the minimalist electronic score by Les Baxter is no help in generating suspense. Most of the humans are unlikable so you don't feel anything when they're attacked and killed. Still, if you're made uncomfortable by creepy crawlies (as I am), there is plenty of close up footage to make your skin crawl. Milland doesn't have much to do except scowl but the young Sam Elliott (without facial hair) makes for an ingratiating hero. The rest of the cast includes Joan Van Ark, Adam Roarke, Judy Pace, Mae Mercer, Hollis Irving and Nicholas Cortland.