seaQuest DSV (1993)

S1E20 Abalon

Commander Ford is convinced he spotted a mermaid deep in the ocean, prompting Captain Bridger to grant him some time off. During his leave, Ford encounters the enigmatic woman once more, only to become caught in the web of a peculiar scientist's bizarre experiment. Meanwhile, Lucas slips away to a party, where he and Julianna contemplate taking their relationship to the next level.