Jet and his friends Sean, Sydney and Mindy attend a space camp, where they put their skills to the test. Along the way, Sunspot develops an allergic reaction that causes him to shrink. Team Propulsion must leave the camp and find the cure, "Dehshrinkulum," without Mitchell discovering just what they're doing.

After the world is in ruins, due to a man-made plague, a battle of Biblical proportions ensues between the survivors.