Theo, a.k.a Turbo (Ryan Reynolds), is a garden snail who dreams of being the greatest racer in the world, just like his hero, 5-time Indianapolis 500 champ, Guy Gagne (Bill Hader). His obsession with speed and all things fast has made him an oddity and an outsider in the slow and cautious snail community, and a constant embarrassment to his careful older brother, Chet (Paul Giamatti). Turbo desperately wishes he could escape the slow-paced life he’s living.

As luck would have it, Turbo gets that chance one fateful day after a freak accident when he gets sucked into the supercharger of a drag racer, fusing his DNA with nitrous oxide on a Street Race when he suddenly finds himself vested with the power of incredible speed and accuracy, as well as some of the characteristics of a car, such as eyes that light up like headlights, and a shell that blinks red like taillights and makes car sounds and music from a radio…