The adventures of a group of Texas teens on their last day of school in 1976, centering on student Randall Floyd, who moves easily among stoners, jocks and geeks. Floyd is a star athlete, but he also likes smoking weed, which presents a conundrum when his football coach demands he sign a "no drugs" pledge.

Inhabitants from a distant planet crash into a lake by a quiet and picturesque mountain village near Los Angeles and cause havoc throughout. Amongst the characters who get entangled with the aliens are: 2 beautiful young couples, an oversexed Southern beauty, a nun, a soldier, a biologist, a handsome police officer, a savvy reporter and a cantankerous editor from a local newspaper.