Before we get into reviewing The Defenders, I’m going to ask probably the number one question that people have been asking: do you need to watch all the other series before watching this one? The answer is that no, you don’t. If you’ve watched both seasons of Daredevil, then you’re pretty much good to go on the plot. Jessica Jones and Luke Cage are unrelated to the overall plot. They’re probably the two best since Daredevil gets a little weird in season 2 but not essential for knowing what’s going on if you know who the characters are already.