Mission: Impossible III

IMF agent Ethan Hunt is retired from fieldwork and has settled down with his fiancée, nurse Julia Meade, who is unaware of his job training recruits. IMF Director of Operations John Musgrave approaches him about a special mission to rescue one of his protégés, Lindsey Farris, who was captured while investigating arms dealer Owen Davian. Musgrave has already prepared a team for Ethan: Declan Gormley, Zhen Lei, and old partner Luther Stickell. The team rescues Lindsey in Berlin and collects two damaged laptops. As they flee, Ethan discovers an explosive pellet implanted in Lindsey's head. Before he can disable it with a defibrillator, it detonates and kills her.
Ethan later learns that Lindsey mailed him a postcard before her capture and discovers a magnetic microdot under the stamp. IMF technician Benji Dunn recovers enough data from the laptops to determine Davian will be in Vatican City to obtain a mysterious biological hazard codenamed the "Rabbit's Foot". Ethan visits Julia at her work, which results in their spontaneous marriage. Ethan plans an unofficial mission to capture Davian. The team successfully infiltrates the Vatican and captures Davian. On the return flight to the US, Davian is unfazed by Ethan's interrogation and responds by threatening to kill everyone for whom he cares.
After landing, Ethan learns that Lindsey's microdot is a warning about Davian and IMF director Theodore Brassel. The convoy taking them across the Chesapeake Bay Bridge is ambushed by mercenaries, who extract Davian. Realizing Julia is in danger, Ethan races to Julia's hospital to discover she has already been kidnapped. Davian calls Ethan and gives him 48 hours to deliver the Rabbit's Foot in exchange for Julia's life. Before he can move, Ethan is apprehended by the IMF and questioned about the loss of Davian. While in the room as part of Ethan's interrogation, Musgrave discreetly mouths that the Rabbit's Foot is located in Shanghai and assists Ethan in escaping. Ethan travels to Shanghai and meets his team, which Musgrave sent there under the guise of another operation. Ethan obtains the Rabbit's Foot and delivers it to Davian, who tranquilizes him and implants a micro-explosive similar to the one that killed Lindsey in his head.
Waking up, Ethan sees Davian holding a gagged Julia at gunpoint. Davian tells Ethan that he will count to ten and shoot Julia if he doesn't tell him where the Rabbit's Foot is. Despite Ethan asserting that he brought the real Rabbit's Foot, Davian seemingly shoots Julia and leaves. Musgrave arrives and reveals himself as the actual IMF traitor. Julia is still alive, and the dead woman is Davian's translator, who is used to confirm the authenticity of the Rabbit's Foot. Musgrave was working with Davian to obtain the Rabbit's Foot so that the IMF would have cause to launch a preemptive strike against an unnamed Middle East country in order to secure the United States' status as sole global superpower while spreading democracy throughout the region. Ethan knocks Musgrave unconscious, frees himself, and uses Musgrave's phone to obtain Julia's location.
With Benji's help, Ethan locates Julia but encounters Davian, who activates the explosive in Ethan's head. Ethan fights Davian, with the two falling into the nearby street. Ethan uses the environment to his advantage, and kills Davian by throwing him infront of a semi-truck, before freeing Julia. He jerry-rigs an impromptu defibrillator to deactivate the explosive, asking Julia to bring him back and teaching her how to shoot a gun. Julia kills a henchman, then Musgrave, who is carrying the Rabbit's Foot, before resuscitating Ethan, who finally explains his IMF career to her. Back in the US, Brassel and others congratulate Ethan as he leaves for his honeymoon with Julia.