Renee and Valerie, a couple at a cross roads in their relationship, leave the city to spend the week at a remote cabin with friends. But when they arrive, their friends are nowhere to be found. As they stumble through their relationship woes, they discover they are being hunted by a group of militant extremists who are determined to exterminate them.
A young boy finds a powerful otherworldly weapon, which he uses to save his older adoptive brother from a crew of thugs. Before long, the two of them are also pursued by federal agents and mysterious mercenaries aiming to reclaim their asset.