Crisis on Earth-X, Part 1

Synopsis
Barry and Iris’s wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of the superheroes band together with help from their super friends like Citizen Cold, The Ray, Felicity Smoak, Iris West and Alex Danvers to take on their most formidable villains yet. Earth's mightiest heroes - Green Arrow, Supergirl, The Flash and White Canary - lead their teams into battle to save the world.

Main/Featured Characters

 * Superfriends
 * Supergirl (Kara Zor-El)
 * Alex Danvers
 * Team Arrow
 * Green Arrow (Oliver Queen)
 * Felicity Smoak
 * Team Flash
 * The Flash (Barry Allen)
 * Iris West
 * Cisco Ramon
 * Killer Frost (Caitlin Snow)
 * Joe West
 * Harrison Wells
 * Kid Flash (Wally West)
 * Legends
 * White Canary (Sara Lance)
 * Firestorm (Martin Stein)
 * Firestorm (Jefferson Jackson)
 * Heat Wave (Mick Rory)

Villains

 * Reverse-Flash (Eobard Thawne)
 * King Shark (Shay Lamden)
 * Dominator
 * Reverse-Flash (Eobard Thawne)
 * King Shark (Shay Lamden)
 * Dominator
 * Dominator

Other Characters

 * Superfriends
 * Winn Schott
 * Mon-El
 * J'onn J'onzz
 * David Singh
 * Cecile Horton
 * Nora West-Allen
 * Lily Stein
 * Clarissa Stein
 * Clarissa Stein

Objects

 * Supergirl suit
 * Green Arrow suit
 * The Flash suit
 * Killer Frost suit
 * Waverider
 * White Canary suit
 * Firestorm suit
 * Quantum splicer
 * Firestorm Matrix
 * Reverse-Flash suit
 * Breach
 * Interdimensional extrapolator
 * Kara Zor-El's glasses
 * Breach
 * Interdimensional extrapolator
 * Kara Zor-El's glasses
 * Kara Zor-El's glasses

Weapons

 * Bow and arrow
 * Guns
 * Swords
 * Heat gun

Events

 * Nazi invasion

Locations

 * Earth-X
 * Earth-1
 * Star City
 * Bunker
 * Central City
 * S.T.A.R. Labs
 * Pipeline
 * CC Jitters
 * England
 * Earth-38
 * National City
 * D.E.O. headquarters