In the Midst of Scattered Light
Despite the best efforts of the 00-Raiser to destroy the second Memento Mori, the beam fired from the badly damaged satellite weapon is still sufficient to severely damage the elevator; pieces of falling structure begin devastating the surface below. The Gundams' efforts to destroy the falling debris are helped by the combined efforts of Marie's GN Archer, Katharon, the Federation army and Kati's forces after a desperate plea for cooperation broadcasted by Sumeragi from the Ptolemaios 2. In the aftermath, Andrei Smirnov unexpectedly slays Hank Hercule, and soon associates his father Sergei with the coup d'etat. Wishing to avenge his mother's death, Andrei destroys Sergei's unit as Marie arrives too late to intervene.
Aired 01/02/2009EP 17 - In the Midst of Scattered Light

Mobile Suit Gundam 00 Second Season
Four years have passed since the final battle between Celestial Being and the UN Forces. Humanity, having established the Earth Sphere Federation, forms an independent security preservation force, A-Laws, separate from the formal Federation army to further unify nations and the will of mankind. But the reality was the inhumane oppression of misuse of powers, doctrines, and ideologies in the name of unity.
Saji Crossroad has followed the path to becoming a space engineer to keep his promise to Louise Halevy, who in turn was compelled to become involved in Federation government reform and joined A-Laws as a mobile suit pilot during the four-year gap.
Meanwhile, Setsuna F. Seiei, having survived the climactic battle four years ago, witnessed a change in the world due to the actions of Celestial Being. With the defeat of Alejandro Corner, he dreamed of a peaceful world without conflict; but before his own eyes was the reality of the continuing strain on peace, the oppression caused by A-Laws. He decides once more to fight with Gundam, the power with the potential to change the world.
(Source: Wikipedia)