Invasion! (The Flash)

Synopsis
When aliens called the Dominators attack Central City, Barry speeds over to Star City to ask the Green Arrow for help in stopping them. Realizing the battle against the Dominators is bigger than they thought, they track down the Legends, and Barry and Cisco create a breach to bring back a secret weapon – Supergirl. Once all of the super friends are assembled, they come up with a plan to attack, but a shocking secret related to Flashpoint is revealed and suddenly no one is sure who they can trust. Meanwhile, Wally wants to join the battle against the aliens, but Iris tells him he's not ready.

Protagonists

 * Team Flash
 * The Flash (Barry Allen)
 * Iris West
 * Caitlin Snow
 * Vibe (Cisco Ramon)
 * Wally West
 * Joe West
 * H.R. Wells
 * Team Arrow
 * Green Arrow (Oliver Queen)
 * Spartan (John Diggle)
 * Felicity Smoak
 * Speedy (Thea Queen)
 * Lyla Michaels
 * Legends
 * White Canary (Sara Lance)
 * Firestorm (Martin Stein)
 * Firestorm (Jefferson Jackson)
 * Atom (Ray Palmer)
 * Heat Wave (Mick Rory)
 * Supergirl (Kara Zor-El)

Antagonists

 * Dominators
 * Agent Smith
 * Vigilante (Vincent Sobel)

Other Characters

 * Lily Stein
 * Traveler
 * David Hackett
 * Nate Heywood
 * Amaya Jiwe
 * Leonard Snart

Teams and Organizations

 * A.R.G.U.S.
 * S.T.A.R. Labs
 * Department of Defense

Species

 * Humans
 * Metahumans
 * Kryptonians
 * Dominators

Objects and Concepts

 * The Flash suit
 * Power-Dampening Cuffs
 * Vibe Gauntlets
 * Reverb Goggles
 * Green Arrow Suit
 * Spartan Suit
 * Speedy Suit
 * White Canary Suit
 * Firestorm Suit
 * Quantum Splicer
 * Firestorm Matrix
 * ATOM Exosuit
 * Dwarf Star
 * Supergirl Suit
 * Dominator Technology
 * Dominator Ship
 * Vigilante Suit
 * Breach
 * CFL Quark Matter
 * Inter-dimensional Extrapolator
 * Bow and Arrow
 * Oliver Queen's Bow and Arrows
 * Roy Harper's Bow and Arrows
 * Heat Gun

Locations

 * Earth-1
 * Earth
 * North America
 * United States of America
 * Central City
 * S.T.A.R. Labs
 * S.T.A.R. Labs Hanger
 * Star City
 * Thea Queen's Loft
 * Earth-38
 * Earth
 * North America
 * United States of America
 * California
 * National City
 * Kara Danvers' Loft