Samantha and Darrin are soon off to the Caribbean on what will be their first real vacation in five years, fully expecting Larry to interrupt their attempt at a vacation with a work assignment. Samantha and Darrin flashback to just before Adam was born, whenDarrin has to go to Japan to do business with a client, but cannot leave Samantha's side when her baby is due. Endora breaks Darrin into two people: the fun Darrin and the business Darrin, with strange and hilarious results.

Note: First episode filmed with Dick Sargent; the story is framed as a flashback to when Samantha was expecting Adam.