Little Einsteins features four children (two boys and two girls) — Leo, June, Quincy and Annie — along with their intelligent and transformable space/air/water-craft, "Rocket". In each episode they embark on an adventure (or "mission") to solve some problem or help a new friend. These missions take them to far-flung locations including foreign countries and "extreme" environments such as Antarctica, underwater or outer space. In some episodes, Rocket's nemesis "Big Jet" tries to steal something from them or beat them to a goal....