The plot has holes in it. At times, they make more of a scene than it actually is. It's not that it didn't have a happy ending, the ending didn't demonstrate the abilities of the super heroes as was shown in earlier movies and didn't deliver the momentum from earlier in the movie. The middle story wasn't developed as much as it could have been, what a disappointment. I didn't expect a lot from this, because I really didn't know where they were going to go, but that's OK, because it didn't go far.