Snooper and Blabber are in their new car and receive a message from their new secretary, Hazel. A Mrs. Van Cash has lost a diamond ring and Snooper and Blabber go to her hotel to retrieve it.
Snooper thinks that it has been stolen but she tells him that it fell down the drain and she must get it back for a showing that day. She tells him that if he can retrieve it, she will pay him fifty thousand dollars. Snooper readily accepts her offer.
Snooper and Blabber try to loosen the pipes and get the ring out that way but it doesn't work and they almost throw the downstairs guest out the window. Snooper then has Blabber pug up the sink faucets with his fingers and he tries using back pressure to pop the ring out. Water starts coming out of Blabber's ears and when Snooper covers up his ears, the rings pops out of the tub and then down a downspout and onto the tail of a dog sitting below.
Snooper and Blabber chase the dog and after a couple of missed opportunities, Blabber finally stops the dog and the dog makes Blabber swallow the diamond ring.
Snooper takes Blabber to where the ring is to be shown and they use an x-ray machine so people can see the ring.