According to the game’s synopsis.
Batman is dead. It is now up to the Batman Family – Batgirl, Nightwing, Red Hood, and Robin – to protect Gotham City, bring hope to its citizens, discipline to its cops, and fear to its criminals. You must evolve into the new Dark Knight and save Gotham from chaos.
DC Fandome is DC/Warner Bros free virtual event which once again welcomes fans from around the world to immerse themselves in the DC Multiverse at DCFanDome.com and celebrate the stars and creators of their favourite feature films, live-action and animated television series, games, comics, home entertainment releases, and more.