Complex sentence: Caught in the destruction of the planet, Victory Saber is rescued by Dai Atlas, who then repels an attack by the Decepticons on Earth, and is appointed the new Autobot commander at the conclusion of the episode.
Split into simpler sentences: Caught in the destruction of the planet, Victory Saber is rescued by Dai Atlas. Dai Altas is appointed the new Autobot commander at the conclusion of the episode.