Chang led an expedition to a newly discovered planet out on the Rim of known space, codenamed Alpha Omega III. He found ruins belonging to the Shadows, but didn't realize what they were, nor that the race was still there in hiding. He came back to Sol System and convinced IPX to sponsor a follow-up mission, which Anna Sheridan joined as his second in command. He then led the Icarus back to Z'ha'dum. He was killed by Donne, a Psi Corps agent attached to the expedition, after most members of Chang's team were trapped by the Shadow artifact dubbed the 'Egg.'