S1E6 — The Vanishing Gundam

The Archangel and its crew are held captive by the Artemis forces. Nicol Amalfi in his GAT-X207 Blitz attacks Artemis, using its Mirage Colloid armor to remain effectively invisible and destroys the Umbrella of Artemis, which protects the asteroid fortress. During the attack, the Archangel is able to escape.