In the distant future, humans abandon Earth because there is too much trash on it. WALL-E, with habit of picking up everything he finds interesting, lives alone on the planet with a pet cockroach. He has quite a collection of things, from lighters to a working iPod and even a small ring box (without the ring). He even has the last living plant. When a spaceship comes to earth and drops a sleek and dangerous probe EVE to look for a living plant, WALL-E falls in love with her. WALL-E gives her the plant, which makes EVE go into sleep mode. When a spaceship comes to take EVE back, WALL-E too goes with her. What follows is an adventure onboard the Axiom, where people move on hovering chairs and get liquid food which they suck up through a straw. Due to laziness, they have become so fat that they are unable to move. Due to hastily given instructions given to it, auto, the autopilot it tries to get rid of the plant which compels WALL-E, EVE, the pilot and some malfunctioning robots to find a way to retrieve the plant and save the earth.

Seventy-eight year old Carl Fredricksen travels to Paradise Falls in his home equipped with balloons, inadvertently taking a young stowaway. Carl Fredricksen as a boy wanted to explore South America and find the forbidden Paradise Falls. About 64 years later he gets to begin his journey along with a Boy Scout named Russel with help from 500 balloons. On their journey they discover many new friends including a talking dog and Carl and Russel figure out that someone evil plans. Carl soon realizes that this evildoer is his childhood idol. Will they be able to defeat him and will they find Paradise Falls?