The Gatekeeper (2002)

Adam Fields is a ragefilled US Border Patrol Agent who often crosses the line in his job A member of a vigilante group Fields decides to go undercover with a hidden camera and cross with a group of undocumented immigrants His plan goes awry however when the group is forced to work for a drug ring Suddenly Fields realizes that he has more in common with the migrants and their search for home family and freedom than he thought