Mobile Suit Gundam: Silver Phantom

U.C. 0096. The unofficial mercenary organization Argent Keil, which belongs to neither Federation nor Zeon, has accepted a mission to assassinate the Federation official Azami Meginneh. This was a commission from the Federation Forces, which can't reveal that Azami has been collaborating with Zeon. But just before the mission, the Argent Keil fleet is attacked by none other than Federation Jegans. Amid the chaos, a silver-colored Gundam secretly possessed by Argent Keil launches into the cosmos.