The Thor functioned as a Strike-class medium cruiser for the Rebel Alliance. This vessel sailed as part of a fleet together with the Zeus and the Odysseus. During the journey, Assault Gunboats alongside TIE Avengers ambushed the convoy, leading the starships to require assistance from X-wings flown by Rogue and Blue squadrons. This support provided the necessary window for the starships to jump to hyperspace and escape.