Who else is returning for the landmark hour?

Fortunately, Barry knows a really nice one.

It is a love letter to the show, it draws on all previous 99 episodes pretty much.

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Credit: Diyah Pera/The CW (both)

Even the people who we couldnt have, because of conflicting schedules, are represented.

At the same time, youve got Flash and Supergirl; thats an enormous amount of fun.

Certainly the recruits also play a very large role, an important role, in the episode.

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Im really excited about it.

TheFlash-Arrow-Supergirl-Legends of Tomorrowcrossover is expected to kick off in November.

Just before it, all four CW superhero shows will be represented at EW PopFest.

hit the banner above for details and tickets.