Luz's group and team avatar were in the police airship heading for Zao fu home of the metal clan. "Wow an entire city made of metal." Emily said. When the airship landed R.J and Lin stayed in it.
Later it was revealed that Suyin the leader of Zao fu was Lin's half sister. "R.J good to see you again." Suyin said. "You two know each other?" Luz asked. "Yep." R.J said. "So what have you been up to R.J?" Suyin asked. "Became an author aunt assassin and single mother." R.J said. "Someone been a busy bee." Suyin said. "Speak for yourself you founded an entire city of metal." R.J said.
After discovering that Suyin's daughter Opal was an airbender everyone decided to stay in Zao fu while Korra trained Opal.
Meanwhile Mao Mao was looking at a statue of Toph. "Someday I will have a statue and everyone will know the name Mao Mao legendary hero." Mao Mao said.
Later that night Luz was having a nightmare about Zaheer attacking air temple island. Luz woke up screaming and said "Again." Luz then saw Princess Luna. "These dreams you been having when did they start?" Luna asked. "My first time here it started when Korra was kidnapped by Tarlok." Luz said. "It must be one of your abilities. Visions tend to be a bit hazy next time focus on these dreams." Luna said.
Meanwhile in ba sing se Odalia was watching Luz "Soon hybrid you and your realm defenders will meet your demise." Odalia said.