Young Justice: Phantoms is the title of the fourth season of Young Justice, preceded by Young Justice: Outsiders, and it will be comprised of 26 episodes. It was announced on July 20, 2019 during the DC Universe panel at San Diego Comic-Con.
Young Justice focuses on the lives of a group of teenaged superhero sidekicks and protégés attempting to establish themselves as proven superheroes and as teenagers dealing with adolescent issues grounded in the context of their personal lives. The show is set in Earth-16, a DC Multiverse world, and corresponds to the present time of our world — a time period Vietti has called "a new age of heroes."
Robin is sent by Batman to work with the Teen Titans after his volatile behavior botches up a Justice League mission. The Titans must then step up to face Trigon after he possesses the League and threatens to conquer the world.