In a post-apocalyptic future, WALL-E (Waste Allocation Load Lifter Earth-Class), a small waste-collecting robot, is left on a desolate Earth to clean up the planet. WALL-E's days are filled with compressing and collecting trash, but his life takes a dramatic turn when he meets EVE (Extraterrestrial Vegetation Evaluator), a sleek and modern robot sent to Earth to search for signs of plant life. As WALL-E and EVE interact, they develop an unlikely friendship, and their adventures take them on a journey to save humanity.