Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
A bunch of juvenile delinquents are let out of prison to train how to survive in the Everglades under the instruction of a guy called Indian Joe. One of them falls down next to a rattlesnake and tries to get up very slowly but the snake bites him on the hand. For no sensible reason, after getting bitten, he is holding the snake up when Indian Joe runs up, grabs the snake, and cuts its head off with a machete, throwing the head onto the ground. Indian Joe carries the snake and the unconscious snakebitten guy back to their camp and then skins the snake and stretches the skin on a long stick. It seems like he would have used the snake meat for food, also, but we don't see that. The other guy suddenly regains consciousness and we're then supposed to believe he has survived the bite. As if it was that fast and easy….