Near Zaofu, Opal, Lin and Bolin are joined by Toph and track the Beifong prisoners to a facility where Baatar Jr. and Zhu Li are testing a vine energy supercannon. Kuvira discovers Zhu Li's attempt to sabotage the weapon, but the rescue team manage to save her as well as break out the captured Beifongs, achieving a measure of reconciliation between Lin and Toph in the process. Meanwhile, Korra tries and fails to convince the spirits to help defend Republic City, which Kuvira is set to attack in two weeks.