Jablonski's female nemesis comes to the Hill for a final showdown; the vacationers are stranded in Las Vegas with Myrna Schnitz; Furillo has to persuade Biff Lowe to help incriminate the Berlettas; and the Cisco Kid returns as an Indian and takes Fay hostage.

Renewed gang feuding involves a small local grocery store and its owners; Belker takes his anger about Robin's decision to stop seeing him out on his frightened informant during a beauty parlor undercover; Garibaldi cuts corners to help a young hooker and in his night school class; and Furillo must work against Daniels to head off a major gang battle.