Walking Tall (2004)

The hard-boiled former U.S. Special Forces veteran and decorated sergeant, Chris Vaughn, is in for a rude awakening, as his peaceful hometown has changed radically. With the old cedar mill gone out of business for good--and a garish gambling house opened instead, promoting drugs and violence thanks to his old high-school nemesis, Jay Hamilton--Chris will have no other choice but to take matters into his own hands as the town's new sheriff. Now, Jay's murderous henchmen have no place to hide--and with a primitive and lethally efficient four-by-four fence post as his weapon of choice--Chris is determined to clean up the vice and the corruption in his beloved birthplace. Who will dare to stop Chris, the furious one-man-army?