"Death of a Cop" ended the first season, with an excellent cast headed by Victor Jory as police detective Paul Reardon, whose son Philip (Peter Brown) has joined him on the force, against the wishes of Philip's mother Anne (Shirley O'Hara), now divorced because she has always feared for their safety. The two are currently on a stakeout in a tough neighborhood known for heroin dealing, foiling a robbery attempt by a pair of junkies. Philip's commendation for bravery fills his father with pride, but the mob, led by Boxer (Richard Jaeckel), take their revenge by executing the helpless cop, deprived of his gun and left to die on his knees. His distraught father is accosted by his ex wife, who blames him for her son's death, and begins an investigation into the bottling company headed by Herbie Lane (Lawrence Tierney), employer of the entire mob responsible for Philip's murder. Weeks pass without incident, as the entire neighborhood proves to be too terrified to testify against Lane's boys, so Paul must resign from the force in order to gather evidence undercover. Among the good guys are Paul Hartman, John Marley, and Hari Rhodes, while a young Rex Holman can be spotted among the evil mob.