After a boring Saturday morning at home, Diamond Tiara wants to go to the city, but as her driver is not home, he decides to take one of the cars that were stored in her father's garage.

So the filly codes one of these cars on the way to the city, not knowing that the car she had taken was damaged and the brake line was cut off.

So Diamond Tiara must now drive the wheel for her life in a car without brakes dodging traffic in the city.