 President James Dale of the United States and his right-hand man, Jerry Ross discover that an army of Martian UFOs are hovering around the Earth, and everyone has a different response. Some, like Texan alcohol dealer Art Land and slimy nesman Jason Black, just want to make a profit out of it. Others, such as TV hostess Nathalie Lake, Land s spiritualist wife Barbara, and the Southern-like Norris family, are excited, and some, like Dale s wife, Marsha, and daughter, Taffy, don t care. Richie Norris is extremely intelligent but is only respected by his insane grandmother, while his older brother Billy is favored for joining the army. General Decker doesn t trust the Martians and insist they fight, but General Casey is more optimistic. The Martians appear to come in peace but suddenly begin to use their super-powerful and technologically advanced weapons to wipe out the population and great structures. Soon, they attack Las Vegas, where the Norrises are living, where former heavyweight champion Byron Williams is visiting, where an obnoxious lawyer is gambling, and where Tom Jones is performing in concerts.