Lawman (1958)

S1E39 The Friend

With Dan absent yet again, Johnny unexpectedly encounters an old buddy in town, unaware that he's now part of a gang plotting to rob the Laramie bank. When Buck Harmon learns that Johnny is the town's deputy, he initially persuades him to leave town for a night of fun. However, as the night unfolds, Buck ultimately decides to stand by Johnny's side in the struggle against his criminal crew.