Set in 1969, Tokyo. Earth is under the attack by secret creatures known as the Invaders. The only thing, stopping them from controlling the world is A.E.G.I.S, a group of gifted gatekeepers.
Did You Know?
In Season 2 (GateKeepers 21) Episode 6, Reiji Kageyama's right leg is blasted apart by blasts from Invaders, yet later in the episode he is standing up with both legs intact. See more
Followed by Gate Keepers 21