An aging ex-boxer gangster working as muscle for a Boston crime boss receives an upsetting diagnosis. Despite a faltering memory, he attempts to rectify the sins of his past and reconnect with his estranged children. He is determined to leave a positive legacy for his grandson, but the criminal underworld isn’t done with him and won’t loosen their grip willingly.

The quiet family life of Nels Coxman, a snowplow driver, is upended after his son's murder. Nels begins a vengeful hunt for Viking, the drug lord he holds responsible for the killing, eliminating Viking's associates one by one. As Nels draws closer to Viking, his actions bring even more unexpected and violent consequences, as he proves that revenge is all in the execution.