Cash Truck (2004) on Netflix

Plot summary

Vigilante is a small French company that guards and moves cash. Three of its transports have been robbed in the past year and the guards were killed, and the robbers got away unseen each time. The business is close to bankruptcy, and the staff suspect that someone inside passed information to the gang. A U.S. company is due to buy Vigilante within a month, so no one knows who will keep a job. On his first morning in this atmosphere Alexandre Demarre reports for work. His colleagues treat him with suspicion at first, then accept him when he fights off attackers during a hold-up. He stays apart from the others and says nothing about where he lives or what brought him to the company.