Hawkeye deals with a racist patient who has an unexploded grenade in his chest. Hot Lips and Frank continue their affair and Henry gets a movie from his wife.
Mary is admitted into the hospital for a tonsillectomy and ends up with a grouchy roommate who could make anyone sick.
Mary once again finds herself cast in the role of the “other woman” when an ex-boyfriend invites her to his engagement party—much to the dismay of his new fiancée.
Ann gets a modeling assignment at Belmont Racetrack and when Don's friends realize there's a horse running named for her, they see it as a "sign" and send her with the money to place a bet for them. She loses the ticket at the wrong time!
After reading a self-help book, Vera (Beth Howland) feels ready to prove she's responsible. But when Mel (Vic Tayback) leaves her in charge of the diner for a few minutes, all hell breaks loose.
