A psychotic sniper plans a massive killing spree at the Los Angeles Memorial Coliseum football stadium during a major championship game. The police, led by Captain Peter Holly (Charlton Heston) and SWAT Commander Sergeant Button (John Cassavetes), learn of the plot and rush to the scene. Still, they may be too late, as an all-star cast finds itself lined up in the sights of a madman. The gunman has his pick of the targets, the Mayor, the President or merely the innocent? Either way he has to be stopped before all hell breaks loose.