Sam refuses to believe it, but all the evidence in two murders points to his former partner, now a hot-shot Lieutenant.

A frightened builder is killed in an explosion after talking to Stone and Briggs, and Sam tries to shake Maitland a building inspector in the pocket of racket boss Koster.

A murder witness identifies Dan as the killer and his bizarre behavior hinders Sam and Jim's attempts to clear him. Dan is trying to protect his crippled ex-partner Tony and Tony's daughter Ani, who are being blackmailed.

Sam and Jim aid a department store manager whose wife and son were kidnapped after a robbery went awry.

Sam and small town Sheriff Cal Cable pursue the same girl for different reasons, Sam needs her testimony to convict mob boss Gus Mills for murder, while the corrupt sheriff wants to silence her.

Suspecting that the bizarre death of a public relations man was no accident, Stone goes head to head with the dead man's ruthless boss, a powerful image maker who sets out to discredit the veteran cop.