Shattered Image was a four-part mini-series published by Image Comics. It was written by Kurt Busiek with illustrations by Karl Kesel. Shattered Image was essentially a reversed mini-Crisis for the Image Universe, in which that creator-owned cosmos was in danger of splitting into six separate realities, one for each major trademark-owner.
This particular mini-series gains additional oomph from the fact that it was real. Liefeld did indeed leave Image, causing his characters to vanish mid-series, and many other shake-ups are hinted at in the series as people appear and vanish.