Following the 11 September 2001 attacks in the US, an explosion in a motorboat shatters the peace on Christmas Eve in London, UK. Following this incident is a daring robbery on an armoured vehicle carrying billions of pounds. The police suspect two Indians: Pipi (Irrfan Khan) and Sim (Tanushree Dutta). They are interrogated extensively amidst allegations that they may be linked to Al-Qaeda.
Crime journalist Monsoon Iyer (Sushma Reddy) learns about their plight, meets them, and asks advocate Krishan Pandit (Anil Kapoor) to represent them in court. Krishan meets with the two, listens to their side of the incidents, is convinced of their innocence, and is quite sure that the two incidents, as well as the deaths of three of Pipi and Sim's friends Chip (Arshad Warsi), Deva (Emraan Hashmi) and Rocker (Sunil Shetty), were the actions of a notorious terrorist named Murtaza Arzai.
Listening to Sim and Pipi, Krishan investigates and pieces together the story of how the three died on the boat that night at Arzai's hand. Krishan succeeds in persuading the presiding judge of their innocence, and the charges against them are dismissed and sealed. However, a fleeting glance at a magazine lying on his office table tells Krishan that the names in Sim and Pipi's story match up with names on the magazine's cover stories and the story must therefore be made up. Sim and Pipi escape scot free, to meet with Rocker, Devaa, and Chip whose supposed deaths turn out to be part of the ruse.