During the Battle of Endor, Imperial AT-ST walkers drive the Ewoks into Endor's forest, destroying trees and causing a forest fire. The narrator explains that in a "galaxy of adventures", Chewbacca finds friends to take out a common enemy. Together with the Ewoks Widdle Warrick and Wunka, they swing on a rope and land on top of an AT-ST walker.
The Ewoks distract the AT-ST drivers Major Newland and Lieutenant Blanaid by blocking the walker's viewports. When Lieutenant Blanaid climbs out of the hatch to investigate, Chewie grabs him and throws him down into the forest. Wicket and Wunka subdue Major Newland before hurling him out of a viewport. Chewbacca and the Ewoks then take over the walker. Wunka struggles with the controls, prompting Chewbacca to roar and take over the walker.
The three approach another AT-ST walker that is chasing Ewoks from behind and blast its head off. The three then attack several stormtroopers and scout troopers, turning the tables on the Imperial pursuers. Chewbacca brings the walker to the second Death Star's shield generator, where Han Solo, Princess Leia Organa, C-3PO, and R2-D2 are holed up. Han initially raises his hands but is relieved to see Chewbacca and his Ewok allies.