Rejectoids

AL1978, a.k.a. AL, is an Alternator, which means he lives for one reason and one reason only: to Shift into a deadly weapon that can help his people defend themselves against the relentless attacks from the humans.

But on the day of his Shifting, the unthinkable happens: AL Shifts, not into a powerful firearm, but into a harmless beat-making boombox. AL is labeled a Rejectoid and scheduled for immediate disassembly.

But when AL's planet is attacked by humans and everyone he knows is captured, it's up to him and a ragtag team of other discarded Rejectoids to discover their true selves and save their civilization.