Nate Overbay --- a divorced former solider suffering from PTSD and slowly dying from ALS --- is about to commit suicide when a crew of robbers bursts into a bank. With nothing to lose, Nate confronts the robbers, taking them out one-by-one. The last man standing leaves Nate with a cryptic warning. Soon he is kidnapped by the mastermind of the failed heist and is given an ultimatum that could lead to the murder of his ex-wife and teenage daughter.