High in the remote Welsh mountains, five builders are bought together to renovate a sprawling old farmhouse. Housed in mouldy portacabins, tensions soon simmer between the men and the self-entitled aristocratic homeowner, as well as amongst the rag tag group of men themselves. World-weary old timer Dave (William Thomas) and kindly Foreman Bob (Steve Speirs) try to keep the peace. But his nephew Steve (Charley Palmer Rothwell) falls under the malign influence of bigot Jim (Chris Reilly), the pair taking a dislike to Viktor (Goran Bogdan), a Ukranian labourer. As the weather closes in and payments are late, tempers fray. Blood is spilled. As the blue-collar men are confronted with an increasingly dark spiral of moral choices, Jim makes an astonishing proposition.