Twilight asks Rainbow Dash to be a role model to Scootaloo.
This is a bad idea.
A very bad idea.
Will Rainbow Dash be able to handle a filly? Can she keep herself from knocking Scootaloo off a cliff? Will Rainbow Dash ever understand this mysterious thing called "responsibility?" And what does quicksand have to do with any of this?
ALL THESE QUESTIONS (and more) WILL BE ANSWERED!