In the conclusion to the adventures of'R2-D2'and'C-3PO'in the'Kalarba system, a power core rupture on'Hosk'forces all life forms to be evacuated, but life forms doesn't include'droids! As'Olag Greck'makes his final stand, R2-D2 and C-3PO race against time to save the industrial'moon, but first they'll have to survive Greck's droid armada!