After witnessing the murder of his wife and young son at the hands of Henry Caine (Craig Fairbrass) who then turned the gun on himself, Abe Dale (Nathan Fillion) is so distressed that he attempts to take his own life. A near-death experience follows that leaves Abe with the ability to identify those who are about to die. He acts on these premonitions to save three people from death, among them a nurse met during his recovery, Sherry Clarke (Katee Sackhoff). Abe soon learns that Henry, before murdering Abe's wife and son, actually saved their lives. This leads Abe to believe that Henry also had the ability to see death. This makes Abe want to learn more about Henry, so he visits his house only to learn that Henry survived his suicide. Investigating further, Abe discovers that three days after cheating death, those whose lives he saved will be possessed and compelled to take the lives of others. Accepting this responsibility, Abe comes with to terms with the horrible fact that he must consider killing to prevent further tragedy.