Call of Duty 4: Modern Warfare - Part 1
2011: Yasir Al-Fulani, president of an unspecified country in the Middle East, is kidnapped as part of an armed uprising that claims he has been "colluding with the West." He is then executed on live TV by a man named Khaled Al-Asad, leader of the coup. Seconds before the shooting, Al-Asad announces to the world: "This is how it begins." Meanwhile, Al-Fulani gains the dubious honour of being the first Modern Warfare player character to be killed off as part of the plot.
Al-Fulani's execution is actually part of a larger plan formulated by The Four Horsemen - a quartet made up of Imran Zahaev and his son Victor Zahkaev, Al-Asad, and an unspecified fourth member that Infinity Ward forgot to put in the game. The Horsemen collaborate to put Al-Asad in power, using his revolution as a distraction to Western military nations; this will help Zahkaev & Son's Ultranationalists to win the civil war that has broken out in Russia.
While the Americans invade Al-Asad's Unspecified Country, the British SAS have been investigating the Russian conflict. Following a lead from an informant, Captain Price and his men intercept an Estonian cargo freighter, discovering a nuclear device and documents that link the Ultranationalists to Al-Asad's insurgents. This raid also marks the SAS debut of John "Soap" MacTavish - the latest addition to Price's squad, and the main player character in Call of Duty 4.
Shortly after the mission, Price's squad carry out a successful rescue mission to save the life of "Nikolai" - the man who provided intel on the freighter in the first place.