With things heating up in Republic City, and Lin resigning her post, a new Metalbending Police chief is appointed. However, it's revealed that the man in charge is nothing but a puppet for Tarrlok to manipulate.
Korra, Mako, Bolin, and Asami, decide to take things into their own hands when Tarrlok tries to grow his own power. After making a fool of him, he enforces new laws to tighten his grip even further. After Team Avatar again tries to interfere, this time to defend innocent non-benders, Tarrlok has them all arrested.
After being freed, Korra confronts Tarrlok once more, this time though, it ends in a brutal fight. The twist arrives though when Tarrlok reveals not only can he Bloodbend, but he can do it without the presence of a full moon. Using this, he beats and detains Korra. As he does, she has a vision of Aang, Sokka, and Toph at a trial of a man named Yakone. He too can Bloodbend without a full moon.
As Korra is taken away, she passes out from the vision.