Lawman (1958)

S04E21 No Contest

McKay's cousin from Boston, Richard Rogers, discovers that the Wild West is even more unpredictable than he imagined. He gets wrongly identified as an outlaw, caught up in the charms of a captivating woman, and ends up getting hit by a jealous cowboy. McKay is played by Peter Brown, with John Russell as Troop, Peggie Castle as Lily, and Dawn Wells as Elly.