Turbo Truck has always stayed in his lane. That lane being the fast one. But when the only job left is one that calls for a delicate hand at the wheel, Turbo has the chance to prove to everyone—and himself—that he can travel at more than one speed.
As Turbo slows down, he discovers the satisfaction of a job well done (even one with no impressive accelerations) and the sights only visible from the slow lane.