When a mysterious cyber-attack cripples civilization, a group of old college friends and lovers retreat to a remote country cabin, where they must cope with an uncertain future while navigating the minefield of their shared past.

In 1920s Ireland young doctor Damien O’Donovan prepares to depart for a new job in a London hospital. As he says his goodbyes at a friend’s farm, British Black and Tans arrive, and a young man is killed. Damien joins his brother Teddy in the Irish Republican Army, but political events are soon set in motion that tear the brothers apart.