The events known as the Escape from Rattatak detail the successful departure of Obi-Wan Kenobi and the ARC clone trooper Alpha-17 from Asajj Ventress's heavily fortified citadel located on the planet Rattatak. Ventress subjected Obi-Wan to torment using both muscle maggots and a Sith torture mask, with the intention of demonstrating his inadequacy as a possible apprentice for Dooku.
After breaking out of their confinement, Obi-Wan and Alpha eliminated Ventress's security forces and attempted to flee via the landing platform. Although Asajj confronted them, she was unsuccessful in stopping their escape. Following their departure, they were chased by Separatist starfighters, which were subsequently eliminated by bounty hunters seeking rewards for capturing Jedi. Ultimately, Anakin Skywalker and Ki-Adi-Mundi came to their rescue, bringing them back to Coruscant.