Ma Yuejin as a scavenger, he often tracking pickpockets, the thief stolen goods after the wallet, to contact the owner to owner to extort money. Once he also peep pickpocket crime, see a picture of a woman fell out of the purse, Ma Yuejin visited with pickpockets regardless of photos, a scavenging boy picked up photos. Ma Yuejin also be pickpockets fence after picked up the wallet, didn't want to juvenile followed Ma Yuejin, and while the toilet on the machine has stolen the wallet. Ma Yuejin caught the young after learning the truth, began a strange "Root-seeking" course......