Full Metal Panic: Mission 6

Sergeant Major Mao exposes her past when she tells the story of how she first met Kurz and Sousuke. Meanwhile, terrorists have taken over a U.S. chemical weapons dismantling facility and taken the island residents hostage. Mithril's entire Special Response Team and the de Danaan are committed to the mission, but sudden shifts in the power structure threaten to tear the crew and the ship apart!