Ty, Sully, Bosco, and Faith rush to the scene of a school shooting; Sully and Tatiana ponder their future together; Kim continues to struggle with her depression.

The investigation into a fatal traffic accident leads Fontana and Green to a slaughtered hunting party in the woods and an unknown man who may have been pursuing vigilante justice.

The death of a parolee, who was a hit man, leads to a wealthy widow and daughter and whether they hired him to kill their rich relative.