Extreme Brave (極限 ブレイブ Kyokugen Bureibu) is Mission 22 of Macross Δ. It first aired on Tokyo MX and BS11 in Japan on August 28, 2016.
While the Macross Elysion lead an attack to draw the Aerial Knights' attention, Walküre and the Delta Squadron start their operation to infiltrate Windermere and destroy the device that controls the ruins to put an end to the war. However, the Aerial Knights see through their diversion and launches an attack on them nonetheless. Hayate, Mirage, Arad and the members of Walküre manage to slip past the dimensional barrier into Windermere, but Qasim follows them close and he burns out the last of his energies in a desperate effort to stop them.