Armored (2009)

Mike Cochroone works as security guard in an armored cars company with an eye for the loopholes. When fellow veteran Ty Hackett, whom he got engaged there, is in deep financial trouble to keep his home and raise wayward orphan teen kid brother Jimmy, Mike presses whole team, including brother-in-law Baines, to go along with a daring plan to rob their own two cars when the load is forty-two million dollars in cash. It starts well, despite hesitations from some whether to turn to crime, even 'victimless' as insured. But unformed zealous guard Eckehart on the abandoned industrial lot they planned to hide is on their trail, and one of them looses his nerve and shoots the young man. Cahoots who didn't sign up for murder get serious second thoughts, leading to division, when even locks himself up with Eckehart in an armored car, forcing the others to turn on them by any means before the game is given away as the police can't take too long to find missing Eckehart.