When one half of the synchronized swimming duo the Aquadolls (guest stars NORA DUNN - Saturday Night Live, Sisters, The Nanny and Wendie Malick - Just Shoot Me!, Dream On, Frasier) meets with an unfortunate end (murder by shark?), the Darling Mermaid Darlings get a chance to come out of retirement at a traveling water circus. But the surviving Aquadoll may know a little too much about Lily's past. Meanwhile, Ned, Chuck and Emerson go undercover to solve the murder.
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