Rookie Blue (2010)

S1E1 Fresh Paint

Andy McNally's inaugural shift quickly spirals into chaos when gunfire erupts in a downtown boarding house. Amidst the turmoil, she successfully apprehends what she believes is a drug dealer, only to discover he is actually Sam Swarek, an undercover cop from her own unit. Determined to redeem herself after this blunder, Andy confronts a menacing gunman who has already shed blood, putting her skills and courage to the ultimate test.