It was not a terrible series but it wasn't anything new. Basic premise that we've seen in other movies but setup with a different backdrop/theme. The movie that draws the closest comparison is Snowpiercer, for me.

Black Knight is basically a series about classism and how the rich yet again are evil and take advantage of the poor to continue to grow their empire, while the poor people fight for their survival and freedom.

Acting was good, but there were a few things lacking with the story. I say the series was corny because there were a lot of moments that were very predictable, due to having seen other movies with a similar premise.

Overall, it's not a bad series just not great either. Actors did a good job though. And the series isn't set up for a season two so it was nice to have a conclusion to the story within the 6 episodes.