"The Last Drink" finds Johnny Yuma getting in touch with his young cousin Eddie (Jack Chaplain) - literally by a slap across the face, courtesy of the boy's father, for causing his mother so much grief. Eddie is waiting for the arrival of notorious gunslinger Trace Dawes (Tom Drake, previously seen in "Berserk"), and has become enchanted with such a life, going places far and wide, making good money like he never has before. Dawes shows up soon enough, with a would be gunslinger trailing him, Ben Culver (Steven Marlo), whose reputation can only be enhanced if he can outdraw Trace Dawes. Yuma notices that Dawes has become quite fond of the bottle, and worries that his cousin will be in constant danger the longer he sticks around. Making his third and final episode, Steven Marlo was a familiar face for decades, later retained for producer Andrew J. Fenady's dual bill of 1973 horror films, "Terror in the Wax Museum" and "Arnold."