Perry defends his client by invoking the constitutional provision of double jeopardy.
Sentinel of the sea Flipper discovers a sinking raft, manned by Bonnie McCoy, her father, an elephant and a chimpanzee.
In an effort to raise money to pay off creditors of McCoy's Floating Zoo, Sandy and Bud join Bonnie McCoy in a scheme to run away with her father's elephant and chimpanzee to rent the animals to Anderson's Land and Sea Circus.
Judy the chimp steals a briefcase full of money and Sean McCoy of McCoy's Floating Zoo is arrested - so Sandy, Bud, and Bonnie decide to put on a show with Flipper to raise money for her father's bail.
A girl is placed in a straight jacket, securely locked in a trunk, and cast to the bottom of the ocean. It's all part of a carnival act, except she doesn't come up! Mike Nelson learns the secret of the act in time to save the girl from drowning.