Excluding the introduction, the Season 6 prequel take place approximately seven months after Day 5 and thirteen months before Day 6, or about eight years after Day 1.
Jack is being tortured with electric shock by several guards. The supervisor Wu San is concerned and informs Cheng Zhi that they are still unable to extract information from him regarding a Chinese government agent who they believe is working for the United States. Cheng disregards the warning and tries again to force Jack to identify whether Hong or Li is the American informant; Jack remains silent, and is thrown back into his cell.
Shortly thereafter, a white man with covert operations gear enters the cell after the muted sound of sound-suppressed gunfire. He is followed by a second soldier: it is a rescue operation. The first man assures Jack that he will be safe soon, and even looks at a photo to confirm it is him.
They lead him through an outdoor complex to a concealed vehicle after shooting a pair of sentries. After a brief car chase between the American agents and Chinese military, they manage to evade the Chinese and come to a dark field where the men tell Jack that they will have a transport ready to pick him up shortly. The two soldiers then summon a man by the name of Hong Wai, who had been concealed behind wall, to greet Jack. Hong Wai is immediately recognizable as one of the men that Jack had been questioned about earlier, regarding the mole in their government.
As Jack flinches and nods in recognition of Hong, several flood lights come on, and Chinese military vehicles swarm on the scene as well as hidden guards appear from the bushes. Cheng Zhi walks into the field and thanks Bauer for his help in identifying Hong, who he had apparently suspected all along.
Jack discovers that he has been set up by Cheng. Zhi then executes Hong with a single shot to the head, and thanks the mercenaries for their role in the set-up, promising them that money will be transferred to their Swiss bank accounts. The guards are then ordered to return a distraught Jack to his cell where he will continue to be held prisoner.
