Daredevil, Black Widow, Luke Cage, Dagger, Moon Knight, and Iron Fist all chasing down The Punisher with another rogue villain at large.
It has a chance to be dark, gritty, powerful, action-packed and show a very human side of vigilantism, because Punisher is an anti-hero. A battered, bruised man being chased for enforcing a brand of justice seemed too intense by a community of other heroes sets up a strong premise.
And I'm aware that a lot of people would like solo films before this culmination, but I think for a Marvel Knights movie, it'd work better in reverse. I know that David Slade is currently developing a DD film, but I think it'd be neat to see this team work together and then see how they tick on their own later on.
After its release, based on who the fans want to see more of, throw those characters solo spin-off films.