Amon takes away Tarrlok's bending in this episode.
Although seen in many flashbacks at this point, this episode marks the first time Aang, Sokka, and Toph have been heard speaking in this series. This episode also reveals that Sokka was a member and the chairman of the United Republic Council in the past.
Tarrlok is revealed to be the son of Yakone, a criminal that the past Team Avatar dealt with prior to the series.
The Metalbending police who were captured in "And The Winner Is..." are saved and revealed to have lost their bending.
Meelo: (answers the phone) Who is this? It's six in the morning. This had better be important.
Bolin: (after earthbending to block the train of chi blockers) Try chi blocking that! Yeah!
Asami: Hey is Mako alright?... He seems really worried about Korra.
Bolin: Yeah. We all are.
Asami: I know. But... he's you're brother. Do you think he likes Korra as more than just a friend?
Bolin: (responding in a sarcastic tone) What! No! That's... just gossip, where did you here that? Crazy talk is coming out of your mouth right now.
Asami: What do you know Bolin?... Com'n... Spill it!
Bolin: Nothing! I mean there was this one time during the tournament where Mako and Korra kissed but...
Asami: (responding in a surprised tone) They kissed?
Bolin: Believe me, I was upset too, but, I'm over it, I don't think it meant anything.
Asami: (responding in a sad tone) I doubt that.
Mako: Let's try this way.
Asami: And what if Korra's not down there?
Mako: Then we dig another tunnel until we find her!
Yakone: This time I'm gonna put you away for good! (begins to bloodbend on Aang)
Aang: (in Avatar State) I'm taking away your bending...for good.
Mako: (after pushing away Lin) Give her some space!
Mako: (while carrying Korra in his arms) ...I was so worried... Are you alright?
Korra: I'm fine.... I'm glad you're here.