We can't use overviews from fernsehserien because they are copyrighted. Please read this topic.

but the overvies in fernsehserien is from RTL-II see: (Text: RTL II), not from fernsehserien, i think. https://www.fernsehserien.de/stan-lees-superhumans/folgen/1x01-folge-1-329680

but okay, you can close it.

Yup, but chances are whatever the source, it is also copyrighted. German laws are a huge pain in the butt.

I have seen the episodes and perhaps I will describe the content with my own short words. The names of superhumans with their superpowers are not under copyright, I think.

A copyright protects only the wording of a thought or idea, not the information itself. So yes, just paraphrase it and you should be safe.