Excalibur is a group of superheroes, with headquarters in London. After a mysterious Pulse affected technology worldwide, Excalibur helped S.H.I.E.L.D. in the mission to face new threats such as supervillains who wanted to acquire a mysterious element the Pulse left on Earth, the Isotope-8.
Members:
Captain Britain
Nightcrawler
Kitty Pryde
Black Knight
Union Jack
Psylocke
