A Land Rover only refueled twice a year, yet its odometer showed 8,000 extra kilometers. The car owner Zhou Jing found out that someone was secretly driving her car every night, returning it before dawn with a full tank, a washed body, and replaced brake pads. Tracking them all the way to an abandoned racetrack, she discovered the car thief was Chen Yu, a former champion racer who retired six years ago due to an accident. After knowing the truth, the car owners in the entire neighborhood didn't call the police to arrest him; instead, they actively lent their cars to him—because of his superb skills and returning cars cleaner than a 4S shop. Chen Yu used these "borrowed 8,000 kilometers" to make a comeback, running a racetrack, finding out the truth about the accident from six years ago, and conveniently helping all his neighbors solve their car problems.