In Plain Sight (US): Season 3, Episode 6

3 - 6: No Clemency for Old Men

When a hardened bank robber (Fred Ward) who's been in prison for decades is finally paroled, it falls to Mary to help him acclimate to life on the outside and keep him from falling back into a life of crime. Meanwhile, when one of Mary's other witnesses (Brian Goodman) becomes the victim of a revenge plot, Marshall steps in to help out