Crisis on Earth-X, Part 4

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

 * Legends
 * White Canary (Sara Lance)
 * Firestorm (Martin Stein)
 * Firestorm (Jefferson Jackson)
 * The Atom (Ray Palmer)
 * Vixen (Amaya Jiwe)
 * Steel (Nate Heywood)
 * Gideon
 * Zari Tomaz
 * Heat Wave (Mick Rory)
 * Superfriends
 * Supergirl (Kara Zor-El)
 * Alex Danvers
 * Team Arrow
 * Green Arrow (Oliver Queen)
 * Felicity Smoak
 * John Diggle
 * Mr. Terrific (Curtis Holt)
 * Wild Dog (Rene Ramirez)
 * Black Canary (Dinah Drake)
 * Team Flash
 * The Flash (Barry Allen)
 * Iris West-Allen
 * Killer Frost (Caitlin Snow)
 * Vibe (Cisco Ramon)
 * Harrison Wells
 * Freedom Fighters
 * The Ray (Ray Terrill)
 * Citizen Cold (Leo Snart)

Villains

 * Nazis
 * New Reich
 * Dark Arrow (Oliver)
 * Overgirl (Kara)
 * Reverse-Flash (Eobard Thawne)
 * Metallo

Other Characters

 * Lily Stein
 * Clarissa Stein
 * Ronnie

Objects

 * Waverider
 * White Canary suit
 * Firestorm suit
 * Quantum splicer
 * Firestorm Matrix
 * Firestorm cure
 * A.T.O.M. Exosuit
 * Vixen suit
 * Zari Tomaz's suit
 * Totems of Zambesi
 * Air Totem
 * Spirit Totem
 * Citizen Cold suit
 * Supergirl suit
 * Green Arrow suit
 * Mr. Terrific suit
 * Wild Dog suit
 * Black Canary suit
 * The Flash suit
 * Killer Frost suit
 * Vibe suit
 * Vibe gauntlets
 * Vibe glasses
 * The Ray suit
 * Dark Arrow suit
 * Overgirl suit
 * Reverse-Flash suit
 * Interdimensional extrapolator
 * Breach/Temporal gateway

Weapons

 * Bow and arrow
 * Guns
 * Heat gun
 * Cold gun
 * T-Spheres

Events

 * Earth-X invasion

Locations

 * Earth-1
 * Central City
 * S.T.A.R. Labs
 * Pipeline
 * Star City
 * Bunker
 * Bunker