This going to very vague as I’ve only seen a couple of episodes and that was quite some time ago.
Anyway, it’s like LOTR meets Star Trek. They had these guys that I believe they referred to as wizards only except they used technology as their “magic”. The better their understanding of technology was the stronger the “wizard”.
To give it more of a LOTR feel, these “wizards”, instead of using a ray gun would use a staff that would shoot out lasers. Or other creative stuff like make a holographic looking dragon appear to kick the ass of it’s aggressors.
The show itself was heavy on the CGI effects.