The CIA obtained intelligence and learned that there was a traitor among their agents, who was going to sell the CIA's list of agents in Eastern Europe to foreign spy organizations. Under the planning of the agent leader Jim (Jon Voight), a group of agents where Ethan (Tom Cruise) lived rushed to the place where they were trading. Unexpectedly, when they arrived as planned, they were ambushed. Except for Ethan and Jim's wife Claire, all other team members were killed. At this time, Ethan's account had an extra 120,000 US dollars for no reason. Ethan became the biggest suspect of the inner ghost. In desperation, Ethan could only go into the dragon's den and the tiger's den alone to find the traitor who betrayed them. After he got in touch with Max, the contact person of the foreign spy organization, he promised to help Max steal the CIA's spy list in exchange for the name of the CIA inner ghost.