In the world of tomb robbers, there are four guys with different personalities but a perfect understanding of each other. They are the experienced bald Qiangzi, the thoughtful glasses Awen, the strong and bulky Tiezhu, and the clever and cunning skinny monkey Erma. They heard that there was a mysterious Xixia royal tomb hidden under the desolate desert in the northwest. It was said that there were countless treasures in it, but it was also full of dangers.