"The Legend of Korra" Book 2 premiere on September 13 is just around the corner, and Nickelodeon is releasing all of Book 1 online for fans to enjoy just in time for the show's return!

It's been over a year since "The Legend of Korra" graced Nickelodeon with its awesome Book 1, and it seems in addition to releasing the season on DVD and Blu-Ray, the episodes will stream online for free. No doubt, this is a way for Nickelodeon to maximize viewership once Book 2 premieres.

Check out the episodes online, starting with "Welcome to Republic City!"

Recently, a pair of commercials for "The Legend of Korra" Book 2 has caused confusion for fans over the release date of the series, but it remains September 13.

In addition to several trailers announcing "The Legend of Korra" Book 2 as well as its September 13 release date, Nickelodeon recently uploaded two commercials, one with the "premieres at Friday" caption and the other with "premieres tonight" captions.

Due to the early appearance of these commercials, many "Legend of Korra" became confused, thinking that perhaps the premiere date had been changed to today, August 30.

But, this is most likely Nickledeon preparing promos to air just prior to the September 13 release date, and one the day of the premiere.

Since then, both commercials have been taken down from the Nickelodeon website, perhaps as a response to the confusion over "The Legend of Korra" Book 2 release date.