S1 Ep. 13: The Deadly Imposter

The Deadly Imposter is the thirteenth episode of season 1 that aired on December 10, 1975. It was directed by Dick Moder and written by Mann Rubin.

Summary
When an old friend comes back into town, Starsky and Hutch make time to help him find his ex-wife and son. At the same time, both cops are also attempting to uncover identity of a hitman who attempts to knock of a secret witness during a drug kingpin's trial.