Crisis on Earth-X, Part 3

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

 * Team Flash
 * The Flash (Barry Allen)
 * Iris West
 * Killer Frost (Caitlin Snow)
 * Cisco Ramon
 * Harrison Wells
 * Superfriends
 * Supergirl (Kara Zor-E)
 * Alex Danvers
 * Team Arrow
 * Green Arrow (Oliver Queen)
 * Felicity Smoak
 * Black Canary (Dinah Drake)
 * Legends
 * White Canary (Sara Lance)
 * Firestorm (Martin Stein)
 * Firestorm (Jefferson Jackson)

Villains

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

Other Characters

 * Unnamed

Objects

 * The Flash suit
 * Killer Frost suit
 * Supergirl suit
 * Green Arrow suit
 * Black Canary suit
 * White Canary suit
 * Firestorm suit
 * Quantum splicer
 * Firestorm Matrix
 * The Ray suit
 * Citizen Cold suit
 * Dark Arrow suit
 * Overgirl suit
 * Reverse-Flash suit
 * Temporal gateway
 * Wellenreiter

Weapons

 * Bow and arrow
 * Guns
 * Cold gun

Events

 * Nazi invasion

Locations

 * Earth-X
 * Star City
 * Freedom Fighters' base
 * Earth-1
 * Central City
 * S.T.A.R. Labs

Trivia

 * This episode is the first episode to not feature Jesse L. Martin as Joe West.