I'm not sure if Daredevil would really be considered Sci-Fi, but it could be argued that it is. Anyway, I've watched the first season so far and I've just started the second season and I'm enjoying the show, definitely hooked on it! The first season reminded me in some ways of the Batman movies with Christian Bale. I didn't know anything about the Daredevil character before watching this show. I would definitely recommend it if you are looking for something to watch.
Well, Daredevil is a Marvel comic book superhero character who was blinded in an accident as a child but the accident also enhanced his other senses. He uses his abilities to fight crime in Hell's Kitchen, New York. That is a very brief summary though, do you need more of an explanation then that?