Doop, an extremely powerful member of X-Statix, suffers a literal brain seperation. The Avengers and X-Statix race to collect the pieces and the teams get into conflict all across the globe. When the confrontations result in an ancient Asgardian threat being loosed, both team up to destroy it. The Avengers, impressed by the courage of their temporary allies, allow X-Statix to leave in peace.
Collects X-Statix (2002) #19-26.