Getter Robo Armageddon is an animated series that was released in 1998.
In it, Ryouma Nagare (Akira Kamiya), pilot of the Getter-1, has been
framed for murder. He is released from prison in exchange for reuniting
with his old friends and serving on a mission to fight the evil Dr.
Saotome (Arimoto Kinryu). Saotome has set out to destroy Earth using a
new and powerful weapon, the Shin Getter Dragon. Nuclear war ensues,
doing more damage to the Earth than it prevented.