Trapper John, M.D. (1979)

S4E1 Don't Rain on My Charade

Title: Don't Rain on My Charade Plot: Melanie's mother unexpectedly drops by, leaving Trapper shocked to discover that Melanie has hidden their divorce from her for the past six years. In light of the tension, Gonzo proposes that a doctor should step into a nursing role for a week to gain insight into their ongoing issues, and before long, he finds himself volunteered for the task.