This interview was conducted on Monday, May 1.Titans showrunner Greg Walker breaks down the series finale with spoilers and shares the potential plans he had for season 5. Unfortunately, HBO Max officially brought Titans to an end after four seasons, and the gritty Teen Titans drama saw Nightwing and his band of heroes take on their biggest threat: Brother Blood. After going through a dark season full of trials, the heroes came together in a big way as they took care of Sebastian Sanger.