When Andy must protect a young witness from an armed suspect, she calls Duncan on the radio to request immediate backup. But the rookie cop freezes. Will Duncan have Andy's back, or will she be on her own this time?
RELATED: The Rookie Report: Heart Breakers, Money Makers »
Check out these photos from "Wanting" for clues to what happens next week:
Gail Peck makes a grim discovery while responding to a call in Episode 504 "Wanting."
Dov Epstein and Chloe Price share a moment in Episode 504 "Wanting."
Rookie Blue stars Missy Peregrym as Andy McNally, Gregory Smith as Dov Epstein, Charlotte Sullivan as Gail Peck, Enuka Okuma as Traci Nash, Travis Milne as Chris Diaz, Peter Mooney as Nick Collins, Ben Bass as Sam Swarek, and Priscilla Faia as Chloe Price.