Hard-nosed and hard-headed NYFD firefighter Tommy Gavin returns along with the rest of the 62 Truck crew. In this season, Tommy is trying to hold his life and team together while dealing with the devastating loss of his son; Franco studies for the lieutenant's exam while "Probie" contemplates the end of his probationary period and now both ponder leaving the house; Lou and Jerry each grapple with--or try to hide from--the financial crises they're...