Professor Callaghan, in an act of guilt, saves Tadashi's life during the fire and takes him back to his warehouse. While helping the older Hamada recover, Callaghan realizes that Tadashi is a threat to his plans for revenge and blackmails him in exchange for Hiro's safety. Alive!Tadashi! Full summary inside.

Mako and Korra get their first moment alone together in three years. Takes place in between 4x07 "Reunion" and 4x08 "Remembrances".

Post-Book 1. Mako, noticing the stress that Korra is carrying under the weight of her Avatar duties, takes her back to their tree as a way to calm her mind and help her find some peace.

AU, one-shot, no bending. New girl Korra, beaten and bullied by Tahno and his group of thugs, learns karate under the watchful eye of her mentor, Tenzin. In a tournament with high stakes, Korra aims to prove herself by fighting her way to the championships. Based off of the movie The Karate Kid.

Mako, recently orphaned, struggles to learn firebending in order to protect his little brother.

Mako, his wife long since deceased, lies on his deathbed. The new Avatar, the young earthbender Luli, connects to the Spirit World and offers Mako one last meeting with Korra before he dies. One-shot.

Korra falls ill after working herself to the brink of exhaustion. Mako, highly concerned over his girlfriend's well-being, brews her an old cold remedy that his mother once taught him how to make long ago... Takes places between Books 1 and 2. One-shot. Based off prompts from tumblr users vvivaa and makowl.

AU. Mako is sick and tired of his neighbor, Korra, whose attempts at cooking have led to forty-eight straight fire alarm building evacuations. Finally reaching his limit, Mako angrily takes it upon himself to teach her how to cook in the form of nightly lessons at his apartment.

Day 2: Fierce. Korra, with the help of Raava, plans to show the world that she can't be knocked down so easily.

One-shot. Hermione's perspective of the part in Half-Blood Prince when she attacks Ron with her canary friends.