Kup always has advice for the youngsters. Always. Even in the middle of the worst firefight, with smoke and death all around, Kup is ready with his antique wrist blasters, a cy-gar and a calmly-told tale that contains the right advice to get them out of a terrible situation. His incredible longevity and fearlessness in the face of Decepticon assault has given rise to the silly rumor that lasers just bounce off the veteran Autobot... and the less-silly rumor that he's just a little bit crazy.
As the Ark travelled deeper into unknown space, the Autobots came across the mysterious planet of Aquatron. Along with Bumblebee, Prowl, and Rodimus, Kup was part of the initial away team aboard the Ark's dropship, sent to scout out the planet. They discovered a civilization of benevolent amphibious robots skilled in the art of processing Energon, and made contact with the Curator, who claimed to be an emissary sent to welcome them to Aquatron. When Optimus Prime and some other Autobots arrived as a larger greeting envoy, Optimus collapsed and was rushed to a nearby medical center for diagnostics. Rodimus, Kup, and Bumblebee set off on the dropship to see if the Aquatronians were as benevolent as they claimed. Their dropship malfunctioned and sank, stranding them in a large underwater complex. Bumblebee used his navigational skills to try and plot a safe route back to the surface, and on the way up the trio stumbled across an armada of dormant Sharkticons. Before they could report their find to Optimus, they also encountered the Hydratron, which hypnotized them into submission. They were then restrained while the Curator tampered with their minds, and subsequently released on the surface without any memories of the event.
When the Aquatronians revealed themselves to be servants of the Quintessons and arrested both Autobots and Decepticons, Kup was one of the Cybertronians called to testify against his leader in the Quintesson's kangaroo court. The Curator's manipulation caused Kup to accuse Optimus Prime of spearheading the Cybertronian revolt during the Age of Wrath and deliberately causing the Great War. Kup eventually snapped out of his trance when the Autobots and Decepticons forged a temporary truce, and aided in the battle against Gnaw's Sharkticon troops. Kup was aboard the Ark when the Autobots departed Aquatron to continue their search for the Allspark.
Following the restoration of Cybertron from the Great War, Kup was one of the many Autobots blacklisted by the new High Council for being a supporter of Optimus Prime.