A night ferry crossing suddenly goes horribly wrong. Kendra Malley and her team are called in to investigate the sinking.

Having found signs of life on board the sunken vessel, the race for recovery continues along with gathering of evidence. Survivors start experiencing flashbacks.

There is unexpected betrayal within the ranks, a possibly innocent man is arrested, and then a dead diver surfaces from the wreck.

A diver's mysterious identity proves to be the key to Kendra's discovery that an ally has been sabotaging her investigation from the start.

Kendra and her team decides to go rogue in their quest to discover the true cause of the ferry's sinking.