The Deep (2010)

S1E2 Into the Belly of the Beast

While on a mission to discover unique micro-organisms, the scientific team aboard the Orpheus submarine faces grave threats. Tragedy strikes with the loss of one of their own, and as the Orpheus is boarded, two crew members find themselves ensnared and low on oxygen. They must find a way to break free, but the looming shadow of an enigmatic ship raises doubts—can they afford to climb aboard and take that perilous chance?