: The duel reveals a surprising connection between Pakku and Katara's grandmother, Gran-Gran, leading to a shift in tribal tradition.

In " The Waterbending Master " (Season 1, Episode 18), Team Avatar finally reaches the Northern Water Tribe. While Aang begins his formal training, Katara faces the tribe's strict traditions that forbid women from learning combative waterbending.

: Sokka meets and falls for Princess Yue, though their budding relationship is complicated by her duties to the tribe.

: Refusing to accept only healing lessons, Katara challenges the stubborn Master Pakku to a duel to prove her skill.

ATLA Rewatch Season 1 Episode 18: "The Waterbending Master" : r/TheLastAirbender

: While the heroes settle in, Admiral Zhao's massive Fire Nation fleet prepares for a full-scale invasion of the North Pole. Where to Watch

You can stream this episode (originally aired in 2005) on the following platforms: