Gatchaman

In the year 2066, the Republic of Hontworl, a charter member of the United Nations, leaves the organization without explaining its motives. This causes an outrage within the U.N. and places the security of the world on edge. Soon after this incident, Myori, the capital of the Republic of Triad, is attacked by a bird-like, flying fortress known as the Turtle King. The International Science Organization, which is headed by Dr. Kouzaburou Nanbu, is tasked to deal with this mysterious enemy. At the...