Sunset has successfully befriended two of the sirens, but Aria proves to be an unconventional challenge.

Sunset has a very bad night, followed by a particularly good one and an even better Christmas.

Inkie and Blinkie track Pinkie down in Ponyville, but the new lifestyle dynamics create complications for Inkie.

Doctor Whooves is assigned to Ponyville to assess the mental health of the Mane 6.