Three thieves lead Mike a deadly chase through the New York subway.

A bank robbery by a lone gunman results in the murder of two employees. Mike suspects that it wasn't just an ordinary bank holdup--he believes the robber had help from someone on the inside.

Mike Barnett is accused of stealing diamonds by four smugglers and killing their partner. Barnett gets the smugglers to second guess each other. He finally determines who is the killer and thief is.