Pinkie Pie asks Rainbow Dash to play with her, but Rainbow Dash keeps saying "not now". She then chases Rainbow Dash all over town. The two then play pranks on Spike and the rest of their friends, except for Fluttershy.
The next day, Rainbow Dash's old friend Gilda arrives, and steals Rainbow Dash from Pinkie Pie. She acts terribly in Ponyville, stealing apples and reducing Fluttershy to tears. Pinkie Pie throws a party for her, but she falls victim to all the pranks meant for different ponies. She then snaps and screams at Pinkie Pie, calling her and her friends lame. Rainbow Dash stands up to Gilda, and Gilda chooses to leave. Rainbow Dash apologizes for her behaviour, and learns that true friends don't act the way Gilda does towards one another.