Chuck the truck and his pals Digger, Boomer, Rowdy, Soku, Biggs, and Handy have always wondered what it would be like to fly; and they are determined to find out one way or another. To realize their dream, they pretend to be aircraft and zoom around the junkyard as if it were the sky.

Looking for any way to get away from the life and town he was born into, Tripp, a high school senior, builds a Monster Truck from bits and pieces of scrapped cars. After an accident at a nearby oil-drilling site displaces a strange and subterranean creature with a taste and a talent for speed, Tripp may have just found the key to getting out of town and a most unlikely friend.