Sealab 2020
S01E06 The Basking Shark
Title: The Basking Shark Plot: After a space probe sheds its parachute during reentry and disappears into the ocean's abyss, the team at Sealab is summoned to retrieve it. With the clock ticking, they must navigate the treacherous waters and unravel the mystery of its whereabouts before it's too late.