The episode begins with a farewell party for , who is leaving for the Northern Air Temple to begin her airbending training. The celebration is short-lived; late that night, while the city sleeps, the anarchist group known as the Red Lotus —Zaheer, Ghazan, Ming-Hua, and P'Li—infiltrates the supposedly impenetrable city.
" The Terror Within " is the eighth episode of The Legend of Korra 's third season, "Book Three: Change". This critical turning point follows Team Avatar as they stay in the metal city of , only to find their safety shattered by betrayal from within . A Night of Betrayal [S3E8] The Terror Within
uses her combustion-bending to pin down anyone attempting to cross the lava. The episode begins with a farewell party for