During a race across Saturn's moon Titan, a volcano blast strips Hawk of his colors. He goes in for a paint job, but a robotic error causes the cadet to emerge with a new, shockingly colorful body.
When Vulture fires Dodo, the forlorn assistant doesn't know what he'll do or where he'll go. Wanting to help, the kids suggest that he enlist in Stardust Space Academy. Dodo's intrigued: he can actually do that?
The cadets are on assignment to dig for Helium-3 (the source of their rocket fuel) under the watchful eye of Loon, the eccentric, beloved senior Chief Engineer of Stardust Bay's Lunar Campus.
Scanning space through a telescope, Robyn spots a new asteroid. Observing from a distance can play tricks with the truth: far-away objects may look small but can approach us quickly.
Eagle, Robyn and Hawk are sent to retrieve three old rovers from Mars, for reassignment to new jobs on Earth. Robyn locates Curiosity and finds that she relates to the no-nonsense robot, whose attention to detail rivals her own.
A faint radio signal is picked up in Stardust Bay - coming from the direction of the Sun. Flying off to investigate, Eagle, Robyn and Raven trace the signal to Mercury instead.
Stardust Bay is abuzz about the Winter Solstice. Every year they gather to watch the Sun set on the shortest day, and then celebrate all night. But Vulture finds this disturbing: the festivities cause Stardust Bay to lose productivity.
