Jet Propulsion, an alien from another planet, and his pals Sean, Mindy, and Sydney learn about science.

Jet Propulsion and his family are human-like aliens from the planet Bortron 7. They travel around space writing about planets for a travel guide. One day, they happen upon Earth, a perfect, life-friendly planet, and land their mothership-house in Washington. Our jovial extraterrestrial hero Jet immediately makes friends with two seemingly-ordinary kids: the creative comic book geek Sydney and the neurotic science nerd Sean, as well as their younger friend Mindy. Together, the kids explore space and science concepts, while struggling to keep Jet's alien identity a secret.