A pegasi-made disaster approaches Ponyville

Scootaloo wishes to help the weatherteam in any way possible.
Rainbow Dash forbids it, saying it is too dangerous.
With the help of her friends, Scootaloo tries to get outside and help her idol / honorary big sister in some way.

Getting outside is a bit of a problem, if you are locked in with the rest of Ponyvilles citizens.

Takes place a while after The Sun, the Moon and the Cushion.