David Ghantt is a quirky and mild-mannered armored truck driver stuck in a monotonous life. He yearns for adventure and excitement, which leads him to fall under the influence of his charming co-worker Kelly Campbell. Persuaded by Kelly and her partner-in-crime Steve Chambers, David becomes embroiled in a risky scheme to steal a massive sum of money from the armored car company where he works. The heist surprisingly goes off without a hitch, and David finds himself unexpectedly flush with cash and on the run.

After fleeing to Mexico, David discovers that he has been double-crossed and left to take the fall for the entire operation while the others enjoy the spoils. As the authorities close in, David's naive trust in his conspirators begins to unravel, leading to a series of desperate and comical misadventures. Meanwhile, an eccentric and relentless FBI agent is hot on his trail, adding further chaos to an already convoluted situation. Amid betrayals and twists of fate, David must navigate the perils of his new life on the lam and find a way to outsmart those who have deceived him.