How The Big DC Crossover on CW Will Be Different From Previous Years

The crossover won’t be a new threat for each episode, but one giant one that will play out over the course of the week.

The topic of the upcoming four-part crossover was brought up during Entertainment Weekly’s Spoiler Room, where some new details were revealed.

The first year he’s referencing is the very first crossover that began when they only had to worry about The Flash and Arrow.