Street's partner, officer Rob Duran, is killed in the premeditated police assassination by two brothers bent on revenging their father's death. That and subsequent police killings serve to shape the psychology of Lt. Dan ""Hondo"" Harrelson's newly formed Special Weapons and Tactics team, ""S.W.A.T."" The team's task is to combat high risk, contemporary, urban crime as a strike force. The team consists of James Street, David ""Deacon"" Kay, T.J.. McCabe, Dominic Luca, and Harrelson. ""S.W.A.T.""'s first assignment is an acid test of their ability to survive as individuals and as a team. Their rigorous training is literally a fight against time.

A convicted murderer's Manson-style "family" engineers his prison escape, but after executing a D.A., this maniacal leader sends a cryptic message to Hondo, naming him as his next victim, along with the jury who found him guilty.

In order to nab a mysterious sniper who's been murdering a series of men a young model has been dating, Street poses as the beautiful woman's latest boyfriend to lure the sniper out of hiding.