In about 18 BBY, the Sith Lord Darth Vader captured the Cerean Thi Xon Yimmon—the leader of the Coruscant-based resistance group the Whiplash—and held him aboard Kantaros Station. Vader's initial attempts to extract information from Yimmon were unsuccessful and he placed the Cerean under watch, to monitor him so that a new approach to forcing the resistance leader to reveal details of the Whiplash's activities could be formulated. In addition, a large contingent of Inquisitors, including the noted Inquisitor Probus Tesla, accompanied Vader to Kantaros Station and took up residence aboard the facility. Soon afterward, Yimmon's allies Jax Pavan, Den Dhur, I-5YQ and Sacha Swiftbird staged a rescue attempt and freed Yimmon from the clutches of his Imperial captors. Pavan briefly engaged in a lightsaber duel with Darth Vader, but the Jedi was eventually able to escape, blowing up one of the station's hangar bays as he fled.