The team reopens the 1980 case of a hockey player who was killed at his team's ice rink in Philadelphia the day the U.S. hockey team beat the Soviet team at the Winter Olympics.
Tommy Caffee's brother returns from being on the lam; Tommy's wife, Eileen, deals with her demons via drugs and alcohol.
Tommy outmaneuvers a U.S. attorney; Michael tries to re-establish his territory with Freddie; Declan must investigate.
Tommy struggles with the political fallout following a destructive fire; Colin's interest in Michael's girlfriend begins to affect his work; Declan uncovers a lead.
Tommy draws closer to Judd Fitzgerald; Eileen's lover breaks things off; Michael struggles with the changes in The Hill.