Captain America is no stranger to weird visions or memories from his past! But when his visions lead him to England, what will the Star-Spangled Avenger find? Enter: Captain Britain!

Steve Rogers is drawing some art for an advertising company, but he is running out of time. Suddenly his clothes change into Captain Britain's new uniform. Besides he hasn't seen this uniform before, he assumes that it could be from someone from Great Britain because of the colors and the flag and decides to go England. In another place of the city Nomad is patrolling the night when he sees a crime scene. He defeat the bad guys but they run away. But when the victim is about to thank him, he calls him Captain America instead of Nomad.

Captain America is in London watching over the night looking for something wrong when Captain Britain shows up and start to fight him. During the fight they almost destroy London and its monuments. Captain America can't recognize this Captain Britain and doesn't know why he is beating him.

Back in NY, Bernie is at Steve's apartment looking for him and finds his note saying he is in England. There Captain Britain knocks him out unconscious. When Steve wakes up he is tied in a dungeon with another man. Then Steve discovers that the guy fighting him wasn't really the Captain Britain, but Modred in his suit and the guy in the dungeon is Captain Britain. Modred wants to defeat Merlin and he decides to first defeat Captain Britain, Merlin's pupil.

And now England has got another warlock - Modred the Mystic!