Meet Stuart Zissu, a twelve-year-old Rebel, and 4B-X, a super-smart droid who can answer almost every scientific question. They join the famous droids R2-D2 and C-3PO on a top secret mission for the Rebellion. After stormtroopers attack their ship, Stuart and the droids must use 4B-X's scientific knowledge in order to pilot and land their runaway escape pod—or else.

R2-D2, C-3PO, 4B-X, and Stuart Zissu find themselves lost on an unknown planet..where there are four seasons in each day. Bombarded by strange creatures and dizzying climactic changes, Stuart and the droids must trek through forests, water, and air...with science as their only guide. They have only one chance for rescue—and only one chance to survive!