SPOILER ALERT: Uh yeah...there's spoilers and stuff so if you haven't seen this show and you want to, maybe now isn't the best time to read this post.
Alright, so here's how the plot ACTUALLY GOES.
These two little kids find this arrow-headed dude in a berg of ice, and apparently that's a big deal. He can manipulate air, which is most definitely not the least cool element. Also, he is the only person in the world capable of bending all 4 elements. He just has yet to learn the other 3, which is what his journey is all about.
So this guy who would absolutely kick Uub's bitch ass in a fight any day wakes up from his slumber (which is obviously not eternal; hence, him waking up) and starts manipulating air currents so as to FUCKING FLY on his stick that turns into a giant fan. The flying nimbus looks like a pansy ass Care Bear cloud in comparison. AND he has a giant six-legged air bison, which also flies, and is his spirit companion. Also cooler than the flying nimbus.
The four element-wielding peoples live in different parts of the world, all staying inconspicuously away from modern civilization I guess. Also, the firebenders are apparently assholes. They go to war with the other three tribes, which is understandable, because fire is totally the worst bending, so naturally they're jealous and feel the need to overcompensate.
So the Avatar gets his gang together, Sokka (from the beginning, who is of the water tribe, but cannot water bend), Toph (the little blind earth bender girl who is a total badass that invents metal bending and is my second favorite character), Katara (from the beginning, who is Sokka's brother, and can blood bend and water heal), Momo (the flying lemur), and Appa (the air bison, my favorite character). Their goal, as I mentioned before, is to ensure that Aang (not Edd) learns to bend all 4 elements so that he can defeat Firelord Ozai and end the war that has been raging for about 100 years.
Meanwhile, Zuko, the troubled, banished fire prince is obsessed with capturing the Avatar and restoring his honor, while his tea-loving uncle, who seems like a somewhat reasonable guy, gently tries to get him back on the right path.
Wire reference deleted, because I don't know how to translate. Also, the fact that they choose to never kill anyone is not weak or dumb, but critical to the underlying story and paramount to the ending.
In conclusion, Avatar: The Last Airbender (the show, not the movie) is one of the best shows ever, and comparing it to The Wire is a dumb thing to do.