The Legend of Korra - Book 3 (Change)
Episode 4: "In Harms Way"

Description: At the North Pole, Zaheer and his team free P'Li from her icy prison. In Ba Sing Se, Lin Beifong arrives to warn Korra about the threat to her life. With her and Jinora's aid, Korra and her friends liberate the press-ganged airbenders. After escaping the Dai Li and the Earth Queen's wrath, Tenzin takes the airbenders to the Northern Air Temple, while Lin, Korra and her friends search for the next airbender.