The season-three finale left Nathan Petrelli (Adrian Pasdar) dead and the shape-shifting Sylar (Zachary Quinto) believing he was Nathan. The final moments of the finale finished with the opening of "Volume Five: Redemption," which hinted that the Sylar/Nathan situation might offer some challenges in the future for our heroes.
"That's going to prove really interesting for a lot of the characters," Fuller said. "I'm just excited about getting back to the basics and getting back to the real world and seeing what it's like for HRG [Jack Coleman] to try to re-create a company when every version of it has failed in the past. And not only doing that, but going through a divorce and trying to hold his family together. And for every plot conceit that we have for a character, we have even more conceits for what's going on in their personal lives that makes their plot story so much more complicated, because their emotional, personal story is so intrinsically tied with what's happening with them. I like the balance of the personal lives that we're telling this season."
The cast will return, including Pasdar and Quinto. "We love the cast. That's the thing. ... We just sort of have to find better uses for them," Fuller said. They will also be adding some new characters who will be introduced later in the season.
Fuller wrote and co-executive-produced Heroes in its first year, and then left to work on his own creation, ABC's Pushing Daisies. When that show was canceled last season, he returned to Heroes as a writer and consulting producer.
He believes every volume of the superhero series "has been valid, and every one has been a slightly different style, which I think is interesting. I love how the show is continuing to grow. It is evolving, and I do think there is a lot of good stuff in 'Fugitives' and 'Redemption,'" Fuller said.
In "Fugitives," "we saw the characters in situations we hadn't seen them in before and got to find out interesting things about those characters," Fuller added. "So what I'm excited about with season four is getting everybody back to the basic principle of ordinary people in an extraordinary world and how these characters are relatable to us and what we would do if we were in their situations, and really grounding it in that conceit."