Follows a pair of siblings who love but distrust each other as they embark on a white-water rafting trip with a small group. One of their friends from childhood turns out to be more dangerous than he appears.茂密的森林，葱(🔛)葱绿绿，一条巨(jù )大的河流从(😂)森林中弯弯曲曲穿过(guò )，这是一(yī(⛄) )条孕育无数生命的(de )河(hé )流。