Investigating the disappearance of several elderly citizens, Excalibur found an “Alice in Wonderland" like reality, created by the Crazy Gang and the Technet’s Joyboy. The reality was actually harmless but reacted to its guests’ anticipations. Expecting only violence, Captain Britain got only violence. Not liking what this said about him, Brian invited his sister, Psylocke, home, feeling he needed her to talk to. [Excalibur (1st series) #54]

At the same time, Excalibur prepared a housewarming party. Among the guests was “Courtney Ross,” who made a display out of using her wiles on Brian. In fact, “Courtney” was ready to make her move and had smuggled Jamie into the mansion, where he murdered another guest,  Brigadier Alysande Stuart. Sat-yr-9’s agents and Jamie took out Excalibur and Sat-yr.9 told a drugged Brian what she had done to the real Courtney. While she gave the rest of Excalibur to Jamie, Sat-yr-9 kept a brainwashed Brian as her personal love slave. Excalibur eventually broke free and Brian proved his independence by not hurting Meggan on Sat-yr-9’s order. Unfortunately, he couldn’t prevent Sat-yr-9 and Jamie from escaping. [Excalibur (1st series) #55-56] Some time later, though, under undisclosed circumstances, Excalibur found a comatose Jamie and brought him to the Moira MacTaggert’s research center on Muir Isle. [Excalibur Annual #2]

As Brian Braddock, Captain Britain had stepped more into the role formerly fulfilled by Jamie as head of Braddock Enterprises, for example making business deals with the Black Panther. While in the Panther’s country, Wakanda, Brian found that he again was having troubles with his powers. He had thought the dispersal of the Omniversal energy matrix meant it was no longer limited in influence to the UK, but still his issues remained. [Excalibur (1st series) #59-60]

Brian began embracing his heritage as a warrior descended from Otherworld more and became obsessed with finding Sar-yr-9, up to the point where he was ignoring Meggan. It was Nightcrawler who made Brian realize his error, and that she wouldn’t wait for him forever. Wanting to make it up to her, Brian took Meggan on a vacation, where he proposed to her. [Excalibur (1st series) #61]

A couple of days later, however, Brian found again that suddenly his powers were fading. This had already started in Africa but now it happened while he was in Great Britain and wearing his uniform, indicating it was a different problem than his past issues. To make matters worse, right then the lovers were attacked by the Cherubim, Warpie agents of the still existing, more clandestine RCX. [Excalibur (1st series) #62-63]

During the battle, Cap inadvertently hurt Meggan. With his powers on the fritz, both Cap and Meggan were taken into custody and brought to the RCX headquarters, where Brian was wrongly told that Meggan was close to death. The RCX leader Nigel Orpington-Smythe claimed that both Brian and Meggan were victims of genetic destabilization that had befallen the majority of the parahuman population (a lie, as it actually was only the Warpies; without the fading energy matrix they were turning baseline human). Smythe tried to bind Captain Britain into the RCX’s service as a symbol for the RCX by directing his rage against a non-existing foe and playing on his guilt. Eventually realizing the truth, Cap fought the Warpie army but, with his diminished powers, he was injured badly and left to die. Suddenly, Roma appeared and offered help under the pretext that his situation was partially her fault. With the energy matrix gone he needed to rely on his uniform for his powers and the Captain Marshall uniform wasn’t properly synchronized to his metabolism; therefore his powers had begun to fail. She corrected the imbalance. [Excalibur (1st series) #64-65]

After their adventure with the RCX, Brian noticed Meggan growing cooler towards him. When he asked her about it, she admitted that, due to her powers, she had always see the matrix energy that gave him his powers and had been attracted to it. When it suddenly went away she wondered if that was all she loved about Brian. Turning the tables around, she reminded him that she had made herself beautiful for him. Would he love her if she had never changed into this beautiful woman? Brian knew no answer.

Later, they shared an adventure in their teammate Rachel’s future, the reality known as Days of Future Past. After hearing that they had been happily married in this timeline, Brian assured Meggan that, while he wasn’t very good at saying romantic things, he did love her and Meggan admitted the same. [Excalibur (1st series) #66-67]

Things could have been wonderful for the couple but, when the others returned to the present, for reasons unknown, Brian got lost in the time stream. [Excalibur (1st series) #68] Brian was swept all over the timestream, the knowledge of millennia crammed into his brain as it passed him by. He was not lost, though; Meggan sent out her love as an anchor and Brian also had some strange link with the originally time-displaced Rachel Summers. He tried to return through her, but unfortunately they couldn’t exist in the same timezone anymore. Rachel did not want to keep the lovers apart, so, with the help of the sorceress, Amanda Sefton, she brought Brian back, only to enter the timestream in his stead. As Rachel departed, a very changed Brian returned, demanding to be called Britanic. [Excalibur (1st series) #73-75]

Britanic had trouble adjusting to normal life again, acting strangely unworldly and led by a sense of destiny, due to vague recollections from the timestream, even though he himself wasn’t sure what precisely he was supposed to do. For example, he took Excalibur on a mission to meet and help the android Zero, although he himself didn’t know why. Actually, it turned out that Zero held the data files to the Legacy Virus and this adventure led them to have their newest member, Douglock, join. [Excalibur (1st series) #78-80]

While the others felt uneasy around the change to Brian, Meggan stood with him. Britanic had some difficulties telling the past from the future and admitted that, while he had seen the future, it was so much knowledge that it was impossible to remember details, although every now and then he would experience some details in premonitions and dreams (such as when he remembered the end of Excalibur in a dystopian future). However, throughout his journey, there was also one constant that Brian had seen - his and Meggan's love would endure. [Excalibur (1st series) #81, 94]

Another dream memory Brian had showed him fighting alongside his brother, Jamie, at some point in the future. Feeling he needed his brother back, Brian and Betsy wanted to help the comatose Jamie by reading his mind and trying to find and alter the childhood memory that had caused his eventual hatred for them and his slide into crime. Seemingly, they succeeded, as Jamie, while still comatose, seemed happier afterwards. [Excalibur Annual #2]