Avatar: The Last Airbender - Divided We Fall

Synopsis
When Team Avatar becomes separated in a sprawling jungle during a dangerous storm, each member must find one another with some help from the forest's far-flung inhabitants.

(Source: Avatar Wiki)

Background
Originally released by Nickelodeon in a four-part series through the Book Two individual volumes and later released by Dark Horse Comics in Avatar: The Last Airbender — The Lost Adventures.