Movies related to undercover cop :

The Departed
8.2
22 Jump Street
6.832
21 Jump Street
6.879
Serpico

Serpico

7.5
Cop Out

Cop Out

5.551
Homefront
6.942
Street Kings
6.633
Taxi

Taxi

5.591
Paris Pigalle
5.306
Hard to Kill
5.987
Sleepless
5.9
Extreme Job
7.1
Believer

Believer

7.2
Destroyer
5.9