Aang's need for a teacher becomes evident when he is recruited to help rid a town of a monster from the spirit world - a perfect job for the Avatar, which Aang has no idea how to perform. When the spirit monster arrives, Aang not only fails to appease it but it kidnaps Sokka. Aang returns to the village, only to find that no one can see or hear him - he has stumbled into the spirit world! In the spirit world, Aang is contacted by a dragon and finds out what his next mission will be, to contact the previous Avatar (Avatar Roku), who has extremely important information for him. The only problem is, to contact Avatar Roku, Aang must get to a temple in the Fire Nation before the end of the winter solstice, in a couple of days. Aang eventually makes it out of the spirit world, and with the experience he has gained, he is able to make peace between the village and the spirit monster. The town is saved and Sokka returns. But the group faces another challenge...