The Epsilon Four, a Lambda-class shuttle, served the purpose of replenishing supplies for the Star Dreadnought Terror. During the year 3 ABY, Rebel agents, specifically Rookie One and Ru Murleen, commandeered the shuttle while it was being loaded with provisions on Imdaar; their objective was to infiltrate the Terror. The shuttle was believed to have remained on the Star Dreadnought when it met its end soon after.