Members of the Galloway family arrive at the home of patriarch Spencer for their annual family reunion, where they receive shocking news about his end of life plans; the group is faced with the resumption of cruel family competitions from the past.
Reeling from witnessing a gruesome murder, the remaining Galloway family regroup to try and escape the island; Seamus and Christy's marriage tensions drive them further apart as more secrets from the past are revealed.
Paranoia and suspicion grow among the surviving group, as another body is discovered and terrible secrets from the past come to the surface.
The family devolves into more violence as both the competition and the infighting continue, leading to bloody results.
After discovering Florence's selfish crime, Theo takes matters into his own hands in dealing with his wicked mother; Christy learns more about Aphra's past, with grisly results.
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.