Created in 1984 by Toei, Bioman is a super sentai TV show, a genre featuring superheroes in costumes fighting evil. The eighth series of this type in Japan, Bioman brought innovations like featuring two women among the five heroes, Yellow Four and Pink Five.
Its 51 episodes initially aired in 1984 and 1985 in Japan and soon also in France, first in 1985 and again in 1987. It was a success and the show became a must for the audience at the time.
The once prosperous Planet Bio is destroyed after a world war erupted over the use of a scientific discovery called "Bio Particles". The Planet Bio Peacekeeping Alliance, which sought to use Bio Particles for peaceful purposes, sends the giant robot Bio Robo and an assistant robot named Peebo to prevent the same tragedy from happening on Earth. Bio Robo arrives in 15th century Japan, where it showers Bio Particles on five young individuals. Five centuries later, the descendants of these individuals, infused with Bio Particles, are chosen by Peebo and Bio Robo to become the Bioman team to protect the Earth from the New Empire Gear, an organization led by mad scientist Doctor Man.