1x9 - Shades of Blue

Harlee's collaboration with Stahl (Warren Kole) uncovers Wozniak's secret relationship with Donnie.  Wozniak decides to take charge of the big job after picking up a package that turns out to be a kidnapped man.  A mysterious call to Saperstein's desk forces the crew to face their mixed feelings about their fallen friend and ultimately decide to preserve his memory.