Arrow-verse Crossover Scoop: Future Barry's Message, 'Intimidated' Sara, a 'Really Wonderful' Coda 

An intimidated time-traveler, a levitating E.T. and a fanboy vigilante will all come together to fight aliens during The CW’s upcoming crossover between

Arrow Episode 100: Oliver Sees Dead People, Including His Bride-to-Be

While visiting the shows’ Vancouver sets, TVLine got scoop from the stars about their characters’ reactions to the out-of-this-world Girl of Steel, Stein and Jax’s secret and more.

star Stephen Amell says of the four-way event, which required some scheduling heroics. “Our first A.D., Ken Shane, handed me this big piece of paper that was just five straight weeks of where I was going each day,” Amell recalls. “It was hard work. I didn’t have a day off, but there was a spirit of teamwork this year that made it palatable.”

Supergirl / Flash / Arrow / Legends of Tomorrow Crossover Photos

VIDEOSArrow-verse Crossover Promo Highlights Alien Invasion, Oliver’s Crisis and Some Super Introductions

GIRL MEETS (OUR) WORLD | Considering he nearly lost his fries when he first met The Flash, it’s no surprise that Diggle’s interaction with Supergirl is equally entertaining. “I always think it’s fun when Diggle gets to go to these other worlds,” his portrayer David Ramsey says. “He’s really a nuts-and-bolts kind of guy, and metahumans kind of freak him out a bit. So I really wanted to see this whole Diggle/Supergirl reaction.”

RELATEDArrow-verse Crossover Details: Trust Issues! Oliver’s Fiancee! More!

Sara Lance, meanwhile, has a crush on the Girl of Steel, as executive producer Andrew Kreisberg previously teased. But the Legends’ captain is also “intimidated by her, at first, because she’s used to being the bad bitch in town,” Caity Lotz previews. “Then all of a sudden comes this alien girl who can, like, levitate and burn things with her eyes. I think [Sara needs to get] over that intimidation and go, ‘OK, I see you.’ She’s impressed by her.”

Someone else who will have a memorable response to the Maiden of Might: Team Arrow’s terrific tech whiz. “You’ll definitely see Curtis go through his paces like any fanboy would,” actor Echo Kellum describes.

VIDEOSNew Arrowverse Crossover Promo Reveals Enemy Aliens, Deathstroke

‘ Martin and Jax discovered from a circa 2056 Barry Allen? During the crossover it will get back to the source, when the present-day speedster “finds out” about the voicemail he will one day send, Victor Garber reveals.

SUPERFRIENDS, FOREVER | With the world under attack from the alien race known as the Dominators, there isn’t much time for newbies like Vixen and Citizen Steel to get to know their new peers. “But then at the end of our episode [airing Thursday], it’s really wonderful,”

newcomer Maisie Richardson-Sellers shares, “because you see everyone together, sort of celebrating in a sense” — what, you doubted the heroes would triumph? — “and that’s when they begin to chat a bit.” (Suggested conversation starter: How long are you going to nap now that this is all over?)

‘s Nov. 28 episode (8/7c), and continues all week on

If you like TVLine, you\'ll LOVE our weekly newsletter. Click here to subscribe.

As someone who only watches Arrow and Flash. Am I going to be wildly confused by watching all 4 parts or are Supergirl and Legends of Tomorrow going to be standalone enough for me to understand without necessarily knowing all of the characters?

You should be able to follow along with little to no difficulty.

Majority of the Supergirl ep is a regular Supergirl ep. At the end of the Supergirl ep, Barry and Cisco come fetch Supergirl from her world. I think there will be some ongoing story stuff in the LoT ep but I suspect majority of the ep will be the alien invasion.

Plus, the scene from Supergirl gets replicated on The Flash.

My understanding is that the Supergirl episode isn’t even really involved other than Barry and Cisco showing up to recruit her. You can probably get away with skipping that all together.

Legends will be fine because it will be a direct continuation of what was on Flash and Arrow. The Supergirl episode does it’s own thing for about 3/4s of the episode, but none of the DC shows are terribly complicated so you should be able to piece enough together to get through it (plus the “Previously On” recap should give you most of what you need).

I honestly want to know if Laure fans will have any closure. Cause we still feel like we wasted 4 years just to see a legacy character fridged.

*i don’t need Olicity fans to reply about how they disagree*

Gilmore Girls: A Year in the Life Recap: \'Fall\' in Love All Over Again

Gilmore Girls: A Year in the Life Recap: \'Winter\' Is a Fan\'s Wonderland

Gilmore Girls: A Year in the Life: The \'Summer\' of Their Discontent

Gilmore Girls: A Year in the Life: What Did You Think of the Final Four Words?

Gilmore Girls: A Year in the Life Recap: \'Spring\' Is For (Troubled) Lovers

1Dear This Is Us: Please Stop Hiding How Much Kate and Toby Weigh91

3Gilmore Girls: A Year in the Life: What Did You Think of the Final…45

4TVLine Is Thankful For: Westworld\'s Rabbit Hole, Supergirl\'s Move…44

5Dancing With the Stars Finale Recap: Did the Right Couple Win Season…40

Gilmore Girls Revival: The Scoop on Those 2…

Gilmore Girls: A Year in the Life Recap: \'Fall\'…

Macy\'s Thanksgiving Day Parade 2016: Miss Piggy…