The Deep (2015) (2015)

S1E9 Fossil

Title: Fossil Plot: While exploring an ancient underwater cave network, the Nekton family encounters colossal prehistoric crocodiles. Ant forms an unlikely friendship with a baby croc, but he soon realizes that its massive mother isn’t pleased with him for taking her offspring. Now, she’s on a relentless pursuit to reclaim her young, putting Ant in grave danger as he navigates the depths alongside his family.