Midgygiant

Midgygiant is a sci-fi action tokusatsu television series produced by Toei Company and El TV Kadsre Television and it was aired between February 13, 1998 and November 9, 2001. It is part of the Technic Heroes continuity. It is a spin-off of Beyond Explorers.

Plot
A dozen thousand years ago, a group of ten Technic heroes sacrificed themselves to defeat an ultimate evil that threatened Emeii. These warriors created artifacts from their energy, the twenty "Spirits", before leaving the planet in the care of the three LTKs (Legendary Technic Knights) However, one of them begins a reign of terror. To counter this, the one of LTKs summons six teenagers via the train-like X-Liner.