Holmes and Watson get involved with nuclear security when they investigate the murder of a former Japanese crime syndicate gang member; Capt. Gregson is blindsided by a stunning personal confession from his daughter, a police sergeant.
With Tommy ostracized by his family, Lou looks to rehabilitate him by giving the Gavin family the letters Tommy has left for them to read after he's died.
As Sean recovers in the hospital following his surgery and Lou is tempted by his prostitute ex-girlfriend, Tommy realizes that his kids know much more about his drinking than he thought.
As Sean returns to the firehouse following his surgery, Tommy finds it is going to be hard to keep his promise to Sheila to watch over 62 Truck's new probie, Damien.
Upset by Tommy's bitter and caustic television interview, Franco looks to move beyond 62 Truck before his own career becomes too tainted.
