All the other Douglases come home early when a baby sitter and Ernie take care of the triplets for the first time.
Steve's (Fred MacMurray) old girlfriend, now a rich divorcee, comes to town and gives Barbara (Beverly Garland) a few jealous moments.
Little Dodie goes to the hospital for a tonsillectomy and insists that Steve stay the night with her.
Robbie and Katie (Don Grady, Tina Cole) have an unpleasant personality clash with the couple in the next apartment.
Steve (Fred MacMurray) gets cast as a tree in Dodie's (Dawn Lyn) school play.
