A famous religious master went to the Asian country of Bomar to give a speech to believers. He was accompanied by a group of senior monks and their followers, as well as his young, beautiful and skilled personal female bodyguard Yifan (Phoenix V.). The security commander (Lin Dongfu) was ordered to receive the visiting master. The rebel organization PLM knew that the visit of the master and his entourage would be detrimental to their plan, so they sent someone to assassinate the master; although Yifan arrived in time, the master was unfortunately injured by the assassin. The seriously injured master must undergo surgery immediately, but his blood type is very rare, and there are only a few people with the same blood type in the country... After learning the list of blood donors, the leader of PLM, Lin Pu (Simon Yam), ordered his right-hand man Jun Di (Pei Pei) to hunt them down one by one. Seeing that time is running out, the master's female bodyguard Yifan decided to go alone to the PLM-occupied area where even the army is unwilling to send people to find the last surviving blood donor - an alcoholic, decadent former special forces member, Zun Di Lewen. Zun ignored Yifan at first, but when they were attacked by PLM, he had to believe Yifan's words. The two people with completely different personalities and backgrounds embarked on a thrilling journey. They tried every means to avoid PLM's pursuit and must return to the Capital Hospital within 12 hours. During the journey, the two gradually established a tacit understanding and feelings. The two finally arrived at the Capital Hospital where the master lived in time, and a group of PLM killers were waiting for them...