During the Ultimatum storyline, Captain Britain (along with other Captains) is discussing how to take action against Magneto in the Houses of Parliament. However, Multiple Man bursts in and sets off a bomb, destroying the Houses of Parliament and everyone inside. His status is unknown on panel, although he was listed in the in memoriam section at the end of Ultimatum #5. He survived the attack at the Houses of Parliament, although he succumbed to the cancer caused by using one of the first versions of the Captain Britain suit, and his brother James took the mantle of Captain Britain.