Wu Xie, antique shop owner and descendant of tomb raiders, is on an ongoing mission to return the artifacts his grandfather stole back to the country. Grandpa Wu wasn’t a bad guy though because he only stole stuff to buy food for his family. Besides leaving Wu Xie with an enormous sense of guilt, he also gave him his tomb-raiding journal that’s filled with all kinds of weird stories.
Wu Xie and his buddy, High Shao, are being chased across a Mongolian desert by a bunch of sniper rifle-wielding baddies. They seem to be after the cow head helmet, figurine artifact that the guys are trying to return to the Chinese Ministry of Culture. Wu Xie accidentally crashes his car into a sand dune, and the bad guys catch up in time to graze his arm with a gunshot. Right when it looks like Wu Xie and High Shao are goners, a random guy by the name of Pang Zi comes racing in to swoop them away.
The bad guys follow the three of them on a chase through a Mongolian village, but Pang Zi’s expert driving allows them to escape. After surviving multiple high-speed chases, the fellas make a pit stop at a restaurant to recharge. Wu Xie finally gets around to asking Pang Zi who he is, but all he gets is a lie about vacationing in Mongolia. But Pang Zi makes a mistake while talking and accidentally reveals that he knows about the cow head artifact. There’s no time to figure out his deal though because the bad guys and their leader, Ah Ning, have caught up with the guys at the restaurant.
They try to escape with the worst disguises ever, and unsurprisingly get caught right away. Pang Zi tries to hold off the bad guys, but gets his ass kicked by Ah Ning. Amidst all the confusion, however, the guys manage to get away once again. They try to hide out in a temple, but of course, Ah Ning catch up to them. Pang Zi comes up with the brilliant idea to divert their attention by blowing up their own car, but these bad guys aren’t stupid. They surround the temple, blocking any possible escape routes. Wu Xie steps out to negotiate with Ah Ning, but she ain’t got time for that. With no other way to protect the cow head artifact, he throws it over the cliff that’s right next to the temple. Everyone’s obviously freaking out that he did that, but a sudden desert storm suddenly kicks off to distract them. In the middle of the swirling sand, a guy holding the cow head artifact. Guy’s apparently got some boss powers because his appearance scares off all the bad guys, and Wu Xie gets his cow head back. He disappears as quickly as he appeared. Wu Xie and High Shao successfully and secretly return the artifact to the Ministry of Culture. But later on, they discover that the old cloth used to wrap the artifact has an ancient scroll hidden.
Back home, Wu Xie finds it weird that there’s been no news about the cow head being returned, meaning it must not be that big of a deal. If that’s the case, maybe it’s not the artifact that was important to those bad guys, but that cloth with the scroll. Careful examination of the scroll shows that it’s ripped on one side, so it’s very likely that it’s just one part of a bigger scroll. But even though Wu Xie stays up for three days investigating the origins of it, there aren’t any more clues. That is, until he gets a phone call from a restaurant saying that his girlfriend wants him to pay her tab. Wu Xie and High Shao hurry off to the restaurant to meet the girlfriend that Wu Xie didn’t even know he had. His “girlfriend,” Chen Cheng Cheng, shows them a picture of a scroll that just so happens to be other half to the one Wu Xie has. It turns out that High Shao put the news of the scroll online, and Cheng Cheng came a-knockin’ with information. Even though the two halves match up, Wu Xie still can’t figure it out.
Wu Xie gets a text message from his uncle about something “good” so he dumps High Shao and Chen Cheng Cheng to go meet up. When he finally makes it to the location, he is held at knife point by a mugger right when he gets out of the car. Luckily mystery man from the cliff reappears in a hooded leather suit and highkicks the heck out of the thief, successfully saving Wu Xie. Uncle arrives on scene shortly after and Wu Xie learns that the good stuff was the ancient weapon mystery man was carrying on his back. He complains that he didn’t get to see it, but uncle blames it all on his late arrival. Wu Xie chides that uncle must have sold the weapon for a fortune.
Wu Xie and his uncle go back to the latter’s home. After scolding Wu Xie for his recent dangerous adventure, uncle figures out that the script is the map of a noble’s tomb from the Three Kingdoms time and is worth a look. Wu Xie immediately stops uncle from looking any further because he is determined to protect the artifacts and offer clues to the country instead.
Once Wu Xie gets home he discovers both Chen Cheng Cheng and High Shao bound up. What is worse is that the script has been stolen by a group of men in black. Wu Xie thinks to himself about the times he saw Chinese artifacts overseas in Germany where he was studying, and how he felt disappointed that so many pieces have been sold off to faraway lands by those in the black market. High Shao and Chen Cheng Cheng suggest that they group together with uncle to find the location of the lost tomb first so they can protect it from being raided by the bad guys. Thought unsure that uncle will do anything pro bono, Wu Xie decides to tell him about losing the script and ask for help.
Turns out uncle is not so bad after all and agrees to take another look at the script. However, uncle is not convinced that Wu Xie should go to the lost tomb because it is a very dangerous activity. Wu Xie doubts uncle’s kleptomaniac tendencies and insists on tagging along despite uncle’s promise.
After collecting all the appropriate gear, Chen Cheng Cheng overhears uncle’s decision to not bring her along. She reveals that the reason for her to go to the lost tomb is to figure out what happened to her aunt who disappeared. Uncle realizes that Chen Cheng Cheng is his girlfriend’s niece and so the more reason to not put her in the path of danger.
Wu Xie tries to convince Chen Cheng Cheng to stay behind as well, but she just runs off on her own. Unable to locate her and plus finding his home broken into again, the remaining trio begins to suspect the bad guys have kidnapped Chen Cheng Cheng. They decide the best thing to do is to set out for the lost tomb and wait for the bad guys.
The trio drives for what seems to be a really long time – or at least according to the two youngin’s since they complained the entire time about how tired they are. Finally they get to a bamboo built restaurant and meet up with others who are joining them – Pan Zi, one of uncle’s peeps and mystery man whom uncle introduces as Xiao Ge.