When an attack on the Kingsman headquarters takes place and a new villain rises, Eggsy and Merlin are forced to work together with the American agency known as the Statesman to save the world.

At the height of the Cold War, a mysterious criminal organization plans to use nuclear weapons and technology to upset the fragile balance of power between the United States and Soviet Union. CIA agent Napoleon Solo and KGB agent Illya Kuryakin are forced to put aside their hostilities and work together to stop the evildoers in their tracks. The duo's only lead is the daughter of a missing German scientist, whom they must find soon to prevent a global catastrophe.

Wrongfully accused and on the run, a top MI6 assassin joins forces with his long-lost, football hooligan brother to save the world from a sinister plot.