The group tries to free a family of spirits from a nightmarish loop inside a haunted house, but it triggers an extreme case of déjà vu for one detective.
The gang gathers for a fun and festive game night as a means to distract Gary from dwelling on a heavy situation
“Worlds lived, worlds died. Nothing will ever be the same.” The crossover starts on Supergirl S5E08, Batwoman S1E09, The Flash S6 E09 and Arrow S8E08.
