R2-D2 is part of a team of Republic droids chosen for an important mission led by the diminutive Colonel Meebur Gascon to obtain an encryption module from a Separatist dreadnought. The droids must overcome numerous challenging obstacles to succeed in this crucial assignment.

Colonel Gascon and D-Squad discover that Abafar, the planet they are trapped on, is Separatist-controlled, but they also discover a Republic Clone Commando named Gregor, who has been stranded on the planet as well. They must work together to get off the planet safely.