12 February 1945, Germany. Max Otto von Stierlitz, a respected SS-Standartenführer in the Ausland-SD, is in fact Soviet spy Maxim Isaev, who has infiltrated into the German establishment. Though Adolf Hitler is determined to continue the Second World War, Walter Schellenberg convinces Heinrich Himmler to conduct secret negotiations with the Americans, hoping to reach a separate peace deal which would allow the Germans to concentrate all their forces on the Eastern Front. In the meantime, Ernst Kaltenbrunner becomes suspicious of Stierlitz, and orders Heinrich Müller to launch a covert investigation on him.
Two honest and bold police officers Adhi Narayanan (Kamal Hassan) and Abbas (Arjun) device a master plan to bring in control the Terrorist Groups and send two secret vigilance officers, named Anand and Shiva on an operation called Operation "Dhanush". The objective is to infiltrate a terror group headed by a man named Badri, and send information back to Abbas. A leak from inside the police camp leads the terrorist to oust Anand as a spy but before they could torture him and get the information of the second spy, he commits suicide.
George Smiley (Guinness), deputy head of the British Secret Intelligence Service, is forced into retirement in the wake of "Operation Testify", a failed spy mission to Czechoslovakia. Veteran British agent Jim Prideaux (Bannen) had been sent to meet with a Czech general he's been told has information identifying a deep-cover Soviet spy planted in the highest echelons of British Secret Intelligence Service, known as the Circus because of its headquarters at Cambridge Circus in London.
In 1984 East Germany, Stasi Captain (Hauptmann) HGW XX/7, Gerd Wiesler, suggests to his superiors that he begin to spy on the playwright Georg Dreyman. Wiesler and his team bug the apartment, set up surveillance equipment in an attic and begin reporting Dreyman's activities. Dreyman had escaped state scrutiny due to his pro-Communist views and international recognition. Wiesler soon learns the real reason behind the surveillance: Minister of Culture Bruno Hempf covets Dreyman's girlfriend, actress Christa-Maria Sieland, and is trying to eliminate Dreyman as a romantic rival. While Wiesler's superior, Lt. Col. Anton Grubitz, sees an opportunity for advancement, Wiesler, an idealist, is horrified, asking Grubitz "Is this why we joined?" Minister Hempf coerces Sieland into having sex with him by exploiting her vulnerability as an insecure actress whose livelihood is dependent on state approval of stagecraft. After discovering Sieland's relationship with Hempf (through Wiesler's covert intervention), Dreyman implores her not to meet him again. Sieland flees to a nearby bar where Wiesler, posing as a fan, urges her to be true to herself. She returns home and reconciles with Dreyman, rejecting Hempf.
Advertising executive Roger O. Thornhill (Cary Grant) is mistaken for George Kaplan and kidnapped by Valerian (Adam Williams) and Licht (Robert Ellenstein), who take him to the Long Island estate of Lester Townsend. He is interrogated by a man he assumes to be Townsend, but who is actually spy Phillip Vandamm (James Mason). Vandamm's "associate" Leonard (Martin Landau) intends to get rid of Thornhill once they finish questioning him.
The film opens with a Star Wars style text scroll, which tells the main situation: In year 80 AM Anno Mickey Mouse, the mice of Planet X are threatened by humiliation and total apocalypse. The well-organized, fully equipped gangs of evil cats are aiming to wipe out the mouse civilization totally, not caring for the old conventions between mice and cats. But in the last moment, when the mouse leaders are beginning to consider leaving the planet, a new hope rises...
The protagonist is Athanasios Bobas (Thanasis Vengos), codenamed Thou-Vou. He is a secret agent in training, one of seven students of a spy school named after James Bond. He is trained in Karate, target practice, track and field, etc. He is, however, thoroughly inept. His trainer Zannino consistently grades him with 0.
An important exhibit is stolen from the Royal Museum of Arts. Fuchs, its watchman and a gambler, was blackmailed by a mafia boss, also Chief of the Yacht Club, to steal the statue of Venus. The time of the theft was linked to an international regatta so that Fuchs could smuggle the stolen goods out of the country.
A poison-gas attack on a Kolkata Metro Rail compartment kills the passengers on board. Two years later Vidya Bagchi (Vidya Balan), a pregnant software engineer, arrives in Kolkata from London during the Durga Puja festivities in search of her missing husband, Arnab Bagchi. A police officer, Satyoki "Rana" Sinha (Parambrata Chatterjee), offers to help. Although Vidya claims that Arnab went to Kolkata on an assignment for the National Data Center (NDC), initial investigations suggest that no such person was employed by the NDC.
Arms trade is taking place in India. An arsenal enters Indian territory via the state of Rajasthan, which makes its way to interior of India with help of many middlemen. Bala Thakur, a gun handler in Chandrapur, provides the arms to Veeran, a forest dwelling brigand. Later, Veeran and his gang attack a wedding bus, mercilessly gunning down every person in it which includes women and children. The government appoints a Special Action Team in Mumbai to trace the roots behind the attack. The team learns about Bala Thakur, but thanks to his informants, Thakur flees before he can be apprehended.
In Srinagar, a Kashmiri terrorist, Wasim Khan (Shiva Rindani), is captured by a team led by Colonel Rayappa (Nassar). In South India, Roja (Madhoo) is a simple village girl born and brought up in Sundarapandianpuram in Tirunelveli district in southern Tamil Nadu. Roja fervently wishes that her sister (Vaishnavi)'s marriage proposal with Rishi Kumar (Arvind Swamy), a cryptologist working with the RAW of India, goes smoothly. Unknown to her and her family, Roja’s sister is in love with the son of her paternal aunt.
Following his pursuit by Kirill, Jason Bourne (Matt Damon) evades Moscow police. Six weeks later, CIA Deputy Director Pamela Landy (Joan Allen) divulges the audiotaped confession of Ward Abbott, the late former head of Operation Treadstone, to Director Ezra Kramer (Scott Glenn). Meanwhile, in Turin, journalist Simon Ross (Paddy Considine) of The Guardian meets an informant to learn about Jason and Operation Blackbriar, the program succeeding Treadstone. The CIA tracks Ross as he returns to London, after his mention of "Blackbriar" during a cell-phone call to his editor is detected by the ECHELON system. Jason reappears in Paris to inform Martin Kreutz (Daniel Brühl), the step-brother of his girlfriend Marie Helena Kreutz (Franka Potente) of her assassination in India.
After killing Dryden, a traitorous MI6 section chief—who has been selling classified information—and the chief's contact, James Bond receives his double-0 status and is designated 007. He then travels to Madagascar in pursuit of Mollaka, a globe-trotting bombmaker-for-hire. After a parkour chase to an unnamed African embassy, Bond kills Mollaka against orders and escapes by setting off an explosion which immobilizes the embassy's security forces. Searching through Mollaka's mobile phone, Bond discovers a text message, which he traces to Alex Dimitrios, an associate of the banker and terrorist financier Le Chiffre. Aided by Mr. White, who is a representative of a terrorist organization later revealed to be Quantum, Le Chiffre is introduced to Steven Obanno, a high ranking member of the Lord's Resistance Army in Uganda, and arranges to bank several briefcases full of cash for Obanno. Le Chiffre, however, decides to invest the money into stock in a successful company called SkyFleet and then engineers a terrorist attack to sink its share prices, creating huge profits for himself.
Alicia Huberman (Ingrid Bergman), the American daughter of a convicted Nazi spy, is recruited by government agent T. R. Devlin (Cary Grant) to infiltrate an organisation of Nazis who have moved to Brazil after World War II. When Alicia refuses to help the police, Devlin plays recordings of her fighting with her father and insisting that she loves America.
Regina "Reggie" Lampert (Audrey Hepburn), on a skiing holiday in Megève, tells her friend Sylvie Gaudel (Dominique Minot) that she has decided to divorce her husband Charles. She then meets a charming stranger, Peter Joshua (Cary Grant). When she returns to Paris, her apartment is completely empty, and police inspector Edouard Grandpierre (Jacques Marin) notifies her that Charles has been murdered while leaving Paris. Reggie is given her husband's travel bag, containing a letter addressed to her, a ticket to Venezuela, passports in multiple names, and other items. At the funeral, three odd characters show up to view the body. One sticks the corpse with a pin and another places a mirror in front of the body's mouth and nose, both to verify that Charles is really dead.