Helena, a woman living a seemingly ordinary life, hides a dark secret—her father is the infamous 'Marsh King', the man who kept her and her mother captive in the wilderness for years. After a lifetime of trying to escape her past, Helena is forced to face her demons when her father unexpectedly escapes from prison.

After the world's population has been ravaged by a pandemic, a man lives a lonesome existence in a Colorado airplane hangar with his dog and a dour gunman he has befriended. When a mysterious transmission comes through on the radio while he’s flying his old Cessna, it sparks a hunt for the provenance of the sound.

A mother and son fleeing from their past form a found family while confronting a harsh landscape of freedom and cruelty in the American West.