Now a full-time student at Hyperspace High, John Riley and his fellow classmates go on a field trip to the high security museum planet of Archivus Major--but the trip goes badly wrong when two rival tribes of aliens are "accidentally" released from a cryogenic storage cube.

The students are preparing a battle demonstration for the annual Space Spectacular show, but despite being chosen team leader John is depressed that his parents will not be there--but bigger problems loom when Mordant tries to sabotage his friendship with Emmie, and the school's battle droids go crazy.