Deep fractures within a family dynamic begin to surface during a getaway to the Isles of Scilly.

A descent into Hell is triggered when "Ex-Lord" Donald Brocklebank finds that he must leave Longleigh House for London to find a way to pay for the medical treatments for his wife Nancy. Alone, his over-protected, delusional, adult son, James, fancies himself in charge of the manor house with his terminally ill mother, and barricades the two of them into the house for a series of ever more panicked home treatments, mistakenly protecting her from the arrival of Nurse Mary and any outside help.

On the run and hiding in the deep forests of the then German occupied Poland and Belorussia (World War II), the four Bielski brothers find the impossible task of foraging for food and weapons for their survival. They live, not only with the fear of discovery, contending with neighboring Soviet partisans and knowing whom to trust but also take the responsibility of looking after a large mass of fleeing Polish Jews from the German war machine. Women, men, children, the elderly and the young alike are all hiding in makeshift homes in the dark, cold and unforgiving forests in the darkest times of German occupied Eastern Europe.