For 31 years Rabbi Samuel Rabinowitz has known Jameer Pace was innocent of murder and he has the bloody t-shirt to prove it. With his bully of a brother now dead, he finally hopes to tell the inmate in person before setting him free. But in 2053, Florida's death row is Stark Station in the asteroid belt, where the condemned inmates are forced on deadly missions to mine radioactive rocks.

The radiation weakening him by the day, Pace doesn't have much time left. Rabinowitz quickly realizes that achieving redemption would come at a terrible cost. Setting Pace free would have harsh repercussions for the rabbi, especially from the station's vindictive warden. Yet, he can live no longer with the horrible secret. Upping the stakes, Rabinowitz tells a journalist that Pace is innocent and shines the spotlight on the abusive practices in Stark Station.

The more Rabinowitz sees how Pace has suffered, the harder it becomes to ask for forgiveness. With a near-suicidal mission on deck for the inmates, the rabbi's gates of atonement may close forever.