Rainbow Dash finally has a chance to join the Wonderbolts. All she has to do is win a series of Timed Aerobatics competitions, which she knows she totally can. Much to her surprise, she does not, and she soon comes to realize it is because the other competitors are taking a drug known as "Morning Sun" which enables them to fly faster, focus more intently, and practice late into the night without getting tired. The drug, however, is banned due to its horrible side effects, and although it grants Rainbow victory, that victory comes at a price. When Twilight realizes what Rainbow is doing, can she save Rainbow Dash from herself?

Rated "Teen" for cartoon swearing, drug abuse, and violence.