The show featured two duelling forces. The "good guys" are humans, called the Lightning League. They drive white and silver vehicles with assorted weaponry, and are led by Jayce. The "bad guys" are organic green vegetable-based creatures called the Monster Minds, who tend to take the shape of black and green vehicles. They travel via large green organic vines which can grow in and across interstellar space, and sprout seeds that rapidly grow into further Monster Minds. They are led by Saw Boss.