The shockingly powerful Vulcan is out for revenge ' and has his sights set on the Shi'ar Empire! Only Charles Xavier and his new team of X-Men can stop the rogue third Summers brother, but as they follow his trail of destruction, Rachel Summers' presence on the outskirts of Shi'ar-controlled space does not go unnoticed ' and a new enemy with deep ties to Rachel is unleashed!

Contains material originally published in magazine form as Uncanny X-Men (1981) #475-486.