While transporting a prisoner Dr. Simon Locke is poisoned Lt. Palmer is desperate to learn the type to provide an antidote. He focuses on criminal Duncan but when he's shot Palmer must look to someone he's close to.
Jeff and Lenny are the sons of a hard luck criminal and when Lenny continues getting sicker, Jeff decides to call for medical help. Dr. Locke determines Lenny needs a kidney transplant and his father, hiding out after a botched bank robbery, may be the only one who can save his life.
Police Officer Mac Houston is traumatized when his partner is murdered and Dr. Locke is assigned to observe him to see if he's fit for active duty. While on patrol they encounter the killer and Locke gets his answer.
Tom Fairly holds a compensation board captive after they decide his father's life was worth only fifty dollars. Dr. Locke becomes part of the situation when he arrives to treat a hostage, putting his own life at risk.