An unlikely trio traverses a desert planet in search of a rumored lake- and the hope for a better life that it represents. Lernert travels across the barren landscape, digging through rubbish piles in an attempt to build a body for Susan, the robot head who hangs, unresponsive, from the back of his pack. The pair comes across Rola, a spirited twentysomething, who lacks survival skills but makes up for it with sheer determination. At first unwilling to travel together, the three-some navigate the harsh desert in search of a mythical water basin that can replenish their depleted resources and their will to continue.当陈源背着苏云登上楼顶的时候,入目处,长三十多米,宽近二十米的楼顶上几乎挤满了人,有老有少,有男有女,陈源和苏云看过去的时候,这几百人正在像那栋七八层高的楼顶上那些人一样在争抢着上空飞行器抛下来的各种物资。