4: Balance Epi...: Avatar: The Legend Of Korra Book

: Team Avatar engages in an "epic" battle to stop Kuvira's giant mecha. Hiroshi Sato sacrifices his life to help the team breach the machine's hull.

: Kuvira reveals her ultimate weapon: a colossal mecha suit armed with a spirit energy cannon, and begins her march on Republic City. Avatar: The Legend of Korra Book 4: Balance Epi...

: Korra returns to Republic City and reunites with Mako and Asami. Tensions rise as they attempt to rescue Prince Wu from Kuvira’s supporters. : Team Avatar engages in an "epic" battle