The Planet Heroes must stop Professor Darkness from destroying the solar system.

Fisher Price Planet Heroes The Ace that jumped over the moon Earth Ace and his need for speed land him on the Moon--and into an instant friendship with Moon "Lunar", Sun's old friend. When Ace receives a distress call from Sun "commander", Moon decides to help Ace and his old pal fight the forces of Black Hole "professor Darkness". The rest of the Planet Hero's team is immobilized, so what can the...