Episode 1 - S1.E1

Upon being informed of the situation, the Nameless decide to take advantage of a narrow mountain pass to attack the Dillsburg base by surprise, but Gusurg of the Calamity Raven predicts their course of action and prepares an ambush. When a Gallian platoon recklessly attempts to charge forward, Riela Marcelis uses her Valkyrian powers to protect them, while destroying one of the artillery pieces. Thanks to a distraction planned by Kurt, Gusurg is ordered to retreat, just as he had the Nameless pinned down. After returning Isara safely to Squad 7, the Nameless then launch an attack on the second artillery piece, which is destroyed by a long range shot from the Edelweiss.