S2, E33: The Stephens' long deferred vacation is postponed once more when Larry Tate pleads with Darrin to work on an important campaign for the Stern Chemical Company. Always critical of her son-in-law, Endora splits Darrin into identical twins: #l, hard-working Darrin, and #2, the epitome of his fun-loving side. Endora then convinces Samantha that at least one half of Darrin deserves a vacation. Telling Darrin #1 she is going on vacation with her mother, Samantha leaves for Miami with Darrin #2. At the office, Darrin #1 staggers Larry and company president Sanford Stern with his capacity for hard concentrated work.