Ben is a 24 - year - old American taking the "Ugly American" tour of Europe, partying in Ibiza, Amsterdam and generally sowing his wild oats. But when his money and passport are stolen in Spain, the Euro party kids he's been traveling with give him an offer: instead of calling home to his oppressive parents, he could take a heavy drug filled backpack on the train between Lisbon and Madrid and make a quick $5,000 on the other side.