两个德国年轻人花了三年半时间环球旅行,只搭便车,乘巴士、火车和船。他们的旅程超过一万公里,经过了欧洲、亚洲、北美洲和中美洲。Two young Germans spend three and a half years traveling around the world just by hitchhiking, bus, train and ship. They travel almost 100,000 kilometers through Europe, Asia, North and Central America.