One day, a cage fighter does match fixing, and gets punished for it by Russian Mafia who murders his family. He then starts to take swift action, when he sees the same mafia after a little Chinese girl, who has a costly numerical code present in her memory.
The thoroughly mediocre Safe provides little more than an excuse for Statham to do what Statham does better than anyone else: look stern while punishing bad guys. That's just not enough.
It's hard to swallow Statham, who spent the Crank movies supercharging his last minutes of life, as a suicidal sad-sack, just as it's painful to see him yoked to a cute little girl in an obvious attempt to soften his image.
It ain't too smart, it ain't too sophisticated, but it does have its charm and is entertaining enough for what it is: an action-packed, B-movie experience.