seaQuest DSV (1993)

S1E2 The Devil's Window

During an exploration of a black smoker, Darwin falls gravely ill. Faced with a heart-wrenching dilemma, Bridger must consider the unthinkable: releasing his beloved aquatic companion to ensure Darwin's survival. As the stakes rise, Bridger grapples with the emotional weight of this decision, weighing the bond he shares with Darwin against the urgency to save his life.