On the Separatist world of Onderon, a group of rebels call for the assistance of the Jedi. Ahsoka, Anakin, Rex, and Obi-Wan go to train the rebels to fight, and see that former Separatist and Ahsoka Tano's love interest Lux Bonteri is among them, as Onderon is his homeworld.

After a rebel attempt to rescue Onderon's true king, Ramsis Dendup, an unexpected ally steps forward to halt Dendup's execution and aid the rebel cause.