Future's End #0 Review

So This is a comic I got at free comic book day and some of you might be wondering why its a number 0 and not number 1? I don't know. Couldn't tell ya. But I have a theory. You know the scrolling text in Star Wars that told you all that was going on? I think that's what number 0's are in comic form. Now on to the story: it begins with The Flash (who I think is Barry Allen in this rendition) runs into a warehouse of sorts and mentions 'they' are too fast. and all the spider robot things come in and they seem hard to defeat and Bruce Wayne loses an arm and he tells his apprentice Terry Mcginnis whom you may remember from Batman Beyond (does anyone here actually watch it? Respond in comments) goes back in time to kill 'someone.' I guess it was a good way to begin a series but it was so confusing. It played 'the pronoun game'  as cinemasins would put it making it hard for the reader to follow. Maybe this is what they are going for I'm not sure. But in stead of feeling intrigued, I just felt disoriented but hey. It was free