Humanity will become extinct in 2050. With the assistance of roboticist Kenichiro Kurenai, the surviving survivors travel back in time to stop the invader, Killgis. When they arrive in the past, they begin construction of a giant robot called Red Baron, and the Red Baron's pilot races against time, aided by enhanced humans, to identify the extraterrestrial in a deadly struggle that begins in Tokyo for the fate of Earth. This is a remake of the 1970s television shows "Silver Kamen" and "Super Robot Red Baron."