The 19 years old Thomas wakes up in a hospital after three years in a coma. He doesn't remember anything. The psychologist Anna tells him that his family has been murdered and that he is the only survivor of the massacre while his sister Laura is still missing.而陈(♏)天豪(🏽)(háo )自己也去外面寻找其他部落的下(xià )落，只是他寻找部落的方法(🌆)跟其他人不一样(yàng )，他是跟(📔)之(zhī )前(qián )一样，在地上慢(màn )慢探索。