When Korra is knocked out by Amon during what was supposed to be their duel but instead was an ambush, she is saved by a new friend, Sonic; a human who is actually an alien hedgehog transported to her world during the end of a war. Now the two of them must stop Amon before he removes Bending from the world forever, while also dealing with Sonic's nemesis, the insidious Dr. Eggman.

After fighting for their lives at Station Square, Sonic, Tails, and Knuckles get transported to The Legend of Korra, AKA the Avatar World! Sonic, Tails, and Knuckles have to learn things on the fly, but their new friends, Korra, Mako, Bolin, and Asami are willing to help. Shadow might destroy things. Reboot of The Adventures of Legends! SonicXKorra

Sonic enters the world of The Legend of Korra! What adventures will await him in the Avatar World?