Avatar: The Last Airbender
Avatar: The Last Airbender (also known as Avatar: The Legend of Aang in the UK) is an American animated series produced for Nickelodeon. It follows the adventures of a young monk with special elemental powers, Aang, and his friends as they battle to save the world from a conquering militant nation.
City of Walls and Secrets (Season 2, Episode 4)[edit | edit source]
A "freedom fighter", Jet, is taken prisoner by the police force of Ba Sing Se and subjected to brainwashing.
Lake Laogai (Season 2, Episode 37)[edit | edit source]
It is revealed that the group's guide to the city, Joo Dee, is a brainwashed slave of the corrupt official ruling the city. Jet's brainwashing is revisted, and both are triggered with the phrase "the Earth King invites you to Lake Laogai".