As the various members of the Galloway family gather to depart for their annual reunion, years-long tensions and rivalries flare up, as they arrive at the private island home of patriarch Spencer. After receiving shocking news about his end-of-life plans, the group is faced with the resumption of a long-dormant round of cruel family competitions from the past.

Paranoia and suspicion grow among the surviving group, as another body is discovered and terrible secrets from the past come to the surface.

Still reeling from Birgit’s confession, Vincent takes his anger out on a panicked Liv, who searches for her missing mother with Theo. With Florence still focused on Vincent, O’Keefe looks for maternal comfort from Grace. The next contest for the family brings new allegiances and stunning betrayals, as Florence makes a horrific sacrifice to save her own skin.

After revealing The Gentleman’s true identity, Theo, Vincent, and Liv face horrific truths about the competition and their family, and the heir to the Galloway fortune claims their prize.