

R2-D2, C-3PO and Mungo Baobab are captured by the Empire on the way to the Roon system.
After being jettisoned over Ingo by a former master, R2-D2 and C-3PO are discovered by landspeeder racers. They accidentally encounter the Fromm Gang and are helped by Kea Moll.
The droids and racers go with Kea to Annoo to stay with her mother. After realizing they are on a Rebel base, they mount defenses against the Fromm Gang's deadly Trigon One.

Thall and R2-D2 set off to destroy the Trigon One while C-3PO and Kea are attacked by the Fromm Gang.