you are the avatar, you can control all four elements(water, fire, air, wind), you are wearing southern water tribe clothes as you are from the water tribe. you are also with you friends Mako(fire bender), Bolin (earth bender), and Asami Sato, also you polar bear dog Naga and and Pabu, Bolin’s ferret (all characters from the legend of Korra but you are replacing korra). ( you are the avatar after aang instead of korra) the spirts somehow sent you to a different dimension and universe all together. you all find yourself in the middle of new york but it just so happens to be the same new york the avengers live in. the avengers wonder who you are. at first you all attack them, not sure if they are enemies or friends.