Tekkaman Blade takes place in the year 2300 AD. On a certain moment, the Radam attack Earth. A few months after the beginning of the invasion, a Tekkaman appears, he calls himself Blade and with the help of the Space Knights, Blade starts to fight the Radam. But there are a few things that Blade isn't telling about his past.

Emi is a seventeen-year-old girl living in Shibuya. Her father is always away with work and she's grown listless. Suddenly, a twist of fate involving a certain magical item changes everything. A mysterious pencil, of all things, is linked to the appearance of heroes from another world! Could this be the start to the excitement she's so desperately craving, or is there something more?

Ten years have passed since the end of Tekkaman Blade, and a new generation of Tekkaman must confront a powerful new enemy while rebuilding their forces. The main character this time is Yumi Francois, a young and bumbling mechanic who proves the unlikely third candidate for the elite Tekkaman fighting trio. Thrust into battle with very little training, she must earn the trust and confidence of her teammates if she is to succeed and survive.

Tekkaman: The Space Knight is an anime produced by Tatsunoko Productions in 1975. A short-lived English adaptation aired in the US in 1984.

Two decades later, it was followed by the much more popular Tekkaman Blade, which was dubbed in the U.S. by Saban as Teknoman. The original series is currently streaming in North America via Yomiura Group's planned Anime Sols video service, as of spring 2013. However, due to the failure to successfully crowd-fund it for DVD, the show will soon be removed from the site, with the possibility of considering a crowd-funding opportunity in the future.