Hill, Renko and Buntz look like heroes when they retrieve a stolen heart needed for a transplant; rookie officer Ron Garfield finds himself in trouble again when a second gun shows up at an officer involved shooting; and Belker misses his wedding ceremony when his undercover as a cocaine cooker heats up.

Hunter hallucinates he's aboard a Russian submarine; Belker finally gets married; Renko busts his favorite country singer again; Furillo meets with a political power broker about the Chief's job; Hill takes his daddy home to St. Louis for his burial; Buntz' old partner comes asking for help with a loan shark; and LaRue and Washington use a lady tattoo artist to help them find a killer.