Doc marries a younger woman only to run into his ex-wife while on his honeymoon. Meanwhile, a voluptuous diet doctor hires a svelte fitness instructor to impersonate her, and a man has to tell his partner their relationship may be over.

After secretly gifting six strangers a cruise, a billionaire goes missing, and Ace suspects one of the six is a murderer. Meanwhile, Mrs. Stubing wants to feel she's more than just the captain's wife.