Clifford, a 20-year-old auto mechanic in the small town of Greenwood, TX, is an ardent believer in UFOs and aliens. The local group of fellow Believers is his pillar and strength through the ups and downs of life, especially their leader, Wilhelmina, who is as passionate as a fundamentalist preacher on the warpath and always knows best.

After being rejected by his long-time crush and childhood friend, Marisol, Clifford finally has a close encounter of the third kind when a flying saucer almost crash-lands right onto his truck. The aliens, two Greys calling themselves Nigel and Phil, happily accept Clifford's offer to fix their ship and help them escape Earth before they're noticed by the authorities.

But in a small town where gossiping little old ladies haunt every street corner and phone line, it's hard to keep anything secret. And when a reckless alien assassin begins to pursue the two Greys, not caring who or what gets killed in the crossfire, secrecy may be the least of Clifford's worries.