Atticus collects what he needs from home, dealing with hard emotions and meets Trevor on board The Titan, his mega yacht. Andrea searches for Atticus at home, then at sea. Trevor shows Atticus the collection a 30 ft shark named Laurel and plots the hunt.

Atticus enters the hospital after radioing a S.O.S. and passing out. Andrea who saves him turns out to be an old friend...nearly fiance. Trevor Manfred finds out about the creature, heads to New Hampshire, offering Atticus his help in killing the beast.

Andrea Vincent rescues a French woman from something huge beneath the water. Atticus and Giona bond, go diving in the gulf of Maine with humpback whales, which are spooked by something large...just before Giona is swallowed whole by the creature.

1637 - Something large eats John Wheelright and spits him back on shore. Present - Atticus Young, ex-Navy Seal turned oceanographer/widower/father of 16 year old, Giona, mourns his wife's death two years previous. A fishing boat encounters something huge.