Disassembled begins with the return of a team member thought dead and by the time it's over, everything you know about the Avengers will have changed! Brian Michael Bendis and David Finch tear the Avengers apart! Collects Avengers (1998) #500-503.
Just wish it captured more issues. I literally read this in an hour.
Brian Michael Bendis, Geoff Johns, Scott Snyder, Tom King, Brad Meltzer, Paul Dini, Louise Simonson, Peter J. Tomasi, Marv Wolfman, Dan Jurgens, Richard Donner, Jim Lee, John Cassaday, Clay Mann, José L. García López, Jerry Ordway, Patrick Gleason, Olivier Coipel & Curt Swan