In Last Spark, Zoom excitedly approached Sludge and Firestar to tell the former how excited he was that the Dinobots were around, and to offer to help out on patrol whenever they needed. His help was declined.
As Sludge, Slug and Snarl debated going out to look for the missing Grimlock and Swoop, Zoom again volunteered his help, meeting the same results. Later he was ambushed by rampaging monsters and was incapacitated.
Zoom survived, only to experience a series of planetwide quakes that destroyed Last Spark, killing everyone but him and Firestar. The two left in search of the Dinobots and ran into Sludge, who himself was trying to find Last Spark and was shocked by the news.
While underground Sludge and Zoom were attacked by an unnamed Predacon. During the battle Zoom was killed.