Years after a patient killed himself under her care, a therapist finds herself reliving the case when a new patient with a similar condition asks for her help. But when her life begins spiraling out of control, she wonders if this is mere coincidence… or if there are more sinister forces at work.

Searching for a happy ending to a tale of unimaginable disaster and horror, nine strangers find themselves holed up together in a farmhouse cellar in rural Texas. The United States has hastily become embroiled in World War 3. A young doctor named Hunter survives the nuclear attack and is thrown together by happenstance with a group of wounded and frightened victims, including Elizabeth, a strong-willed confidant to Hunter, Brad – an antagonistic redneck jackass, and Jennifer, a barely coherent young woman suffering from severe post-traumatic stress. Together, they attempt to endure the devastating holocaust as they struggle with claustrophobia and conflicting personalities. In a makeshift shelter, Hunter and his dying companions wait for news from the government while fending off hunger, radiation sickness, and a horde of frightened and dying refugees