The Golden Circle is a drug cartel run by Poppy Adams. It was responsible for the 'blue rash' disease infecting anyone who took Poppy's drugs (marijuana, cocaine etc.). Also, came dangerously close to destroying the Kingsman. However, two agents managed to survive, Gary "Eggsy" Unwin, who was on a dinner date, and Merlin, whose address wasn't on the agent database and thus was considered "mere staff". Eventually, the two discover that Kingsman agent Harry Hart is still alive. With the death of it's leader, Poppy and much of it's staff. The Golden Circle is now in shambles, perhaps even wiped out.