Outpost

One passenger on a train approaching the capital looks a little different from the locals. When he arrives in the city, he gains access to the Presidential Palace and persuades the President to back off from his planned military attack on a neighbouring country. He meets a young journalist who he joins on a trip into the mountains to rescue the journalist's girlfriend, who is held prisoner by a terrorist group. All along the stranger displays some bizarre skills. Who is he? What is his mission? And where does he come from?