Shortcuts, for one.
Now, let’s say you have a goal for your character(s). Let’s say they fight to achieve this goal and finally win. Let’s say this is a television show. Let’s say they fight for this goal for a good chunk of the first season. Let’s say we even get reminded of that goal and subsequent victory later in the season, maybe even in the second season.
DO NOT make it all pointless in the first episode of season 3. Don’t. That’s bad. And the writers of Heroes should know better.