Out of Reach (movie, 2004)

Vietnam veteran Billy Ray Lancing, a former CSA agent who now works on a wildlife refuge in Northern Alaska, has been exchanging letters in a pen-pal relationship with Irina Morawska, a 13-year-old orphaned girl in Poland that he's helping out financially. When the letters suddenly stop coming, Billy heads to Poland to figure out why -- only to discover that the orphanage that Irina was staying in, which is financed by honest -- and unsuspecting -- good-intentioned Samaritans, is a cover for a human trafficking network.