(After Korra leaves Tenzin to train with Unalaq)
Unalaq: By neglecting the spirits, the people of the south have brought darkness upon themselves. And now it threatens to destroy our tribe. We must set things right. The Southern Water Tribe depends on you.
Korra: A dangerous trip to the south pole? Count me in!
(Unalaq explains the spirits to Korra)
Unalaq: There are no evil spirits. There is light and dark in them all. When they are unbalanced the darkness takes over.
(Sitting around the fire, Unalaq is about to teach about the spirits.)
Bolin: Can we not talk about dark spirits please? (huddles tight against Eska)
Mako: My brother doesn't like ghost stories.
Esna: Don't worry, I will protect you my feeble turtleduck.
Bolin: Thank you.
When Meelo's lemur, Poki, escapes it glides down through the line of sight with the monk's leg. As it does, the monk's leg and the box disappear.
During the scene where Bolin interrupts Tonraq and Unalaq's argument, Korra's gloves change multiple times. They usually go halfway up her palms, but the fingers keep changing.
On their way to the south pole, Desna and Eska ride in Bolin's side car. The order right before they get attacked was Bolin, Desna, then Eska. When Bolin loses control of the snowmobile, Eska has moved to the inside.
When Bolin hugs Korra after she opens the portal, Eska gets jealous. When she asks him why he initiated physical contact, her makeup is missing.