Clock King
-is Central City's greatest hero, and Team Flash does not exist.
Deadshot
-in a costume that combines the face cover and ballistic style of the police task force with the Deadshot costume
(Clearly Joe West, but the reasoning behind this will come later)
Harrison Wells-
In a cyborg-esque suit (although not himself a cyborg) is America's greatest superhero.
Grodd-
and his army of intelligent gorillas
Hawkwoman-
In this reality, from Hawkworld (and not necessarily the LoT actress) and her hawkpeople
-Other characters-
President Stagg
General Eiling
Eddie Thawne
Linda Park
Vixen
Project: Firestorm"
-the government branch responsible for exploiting the hero as a weapon.
Barry Allen wakes up to discover everything and everyone around him has changed. He has no powers, his mother Nora (deceased in his own timeline) is alive; his father, Henry, died of a heart attack three years ago (instead of in prison)
Deadshot throws a criminal off a building.
Harrison Wells and DS have a conference with a group of superheroes
-Vixen
-Plastique
-Captain Cold {actually Killer Frost/Katelyn Snow}
-Sportsmaster
-King Shark
-Question (Vic Sage)
-Deadman
to discuss how the Gorillas have taken over the British Isles and the Hawkpeople have conquered West Europe and the battle between the two has caused massive death and destruction. America is similarly endangered. The heroes cannot cooperate to find a solution, and the meeting is ended.
Barry Allen locates DS only to be attacked by him. It's here, DS is revealed to be Joe.
In the flooded remains of Paris
Trickster
captains a pirate ship in search of his son. Hawkwoman stabs Trickster in the chest and attacks his crew
-some of the one-shot villains we've seen
Barry tries to explain to West about his secret identity. Barry realizes that the world of Flashpoint is not a parallel dimension, but an alternate reality. He decides, once again to recreate the accident that gave him his powers in a bid to undo the damage, only this time, in a much more crude manner. His initial attempt fails and leaves him badly burned
In London
Eddie Thawne
Is waiting at a rendezvous for
Linda Park
but is attacked by the Gorillas. Grodd begins interrogating him. He explains that he was hired to extract Park from New Gorilla City because she was sent to gather information on the for Wells. President Stagg informs Wells that Thawne sent a signal to the Resistance but was intercepted because of a traitor among the heroes that Wells tried to recruit. Wells is relieved of duty as
Vixen
sneaks into the headquarters. Meanwhile, in New Gorilla City, Park encounters the Resistance.
A second attempt at recreating Allen's accident restores his powers and health. He learns that Ronnie Raymond was taken by Project: Firestorm. Flash, Deadshot and Wells join the cause to stop the Gorillas and Hawkpeople. The three find a pale, weakened Firestorm at the Project. After being rescued, Superman flies off in seeming fright in the midst of a battle with the guards, leaving the three in the sewers to be rescued by Vixen. Flash's memories continue to change.
The president announces Wells' failure to unite the world's superheroes and the U.S. enters into the Gorilla-Hawk war. Flash, Deadshot, Wells and Vixen break down the door in need of
Weather Wizard's (a loner good guy)
help and Deadshot asks
Him To use the lighting to prevent Flash's memories from changing even further. The group hears of the failed air assault on England. Flash tells Deadshot that if he fails to stop Thawne, the world will destroy itself. Despite reservations, DS joins Flash as the group heads off to New Gorilla City. Grodd and Hawkwoman are fighting one-on-one until Flash and his team arrive.
Weather Wizard attacks Hawkwoman and appears to be winning until
Captain Cold
reveals herself as the Hawkpeople spy in the Resistance and freezes and destroys Weather Wizard.
One of the Hawks kills
Plastique
causing a massive explosion that cripples the opposing forces.
In the wake of the devastation, Thawne appears in front of Flash. The Reverse-Flash reveals that Flash himself created the Flashpoint timeline by traveling back in time to stop Reverse-Flash from killing Barry's mother. Barry pulled the entire Speed-Force into himself to stop Thawne, transforming the timeline by shattering history. Thawne resets Barry's internal vibrations, enabling him to remember this. According to Thawne, these actions transformed him into a living paradox, no longer requiring Barry to exist and allowing him to kill the Flash without erasing his own existence. Thawne continues to taunt Barry with this knowledge until Deadshot kills him with a Hawkworld flail.
As the fight continues, Firestorm arrives and begins to aid the heroes, first by
killing Captain Cold (as their eyes meet and we see that, in any world, timeline or universe, these 2 are meant for each other).
Joe insists that Barry put history back to normal to undo the millions of deaths. Meanwhile, Wells detects seismic activity which he claims could destroy the world. Waves start to approach. Now knowing the point of divergence, the Flash restores the timeline. As he enters the timestream, a dying Joe thanks him for giving his children a second chance and gives Barry a letter addressed to them. Barry then meets with his mother and bids a tearful farewell to her.
Traveling back in time, Barry merges with his earlier self during the attempt to stop Thawne. Barry then wakes up in a similar manner to the beginning of Flashpoint, also retaining all his memories from the alternate timeline. Believing that everything is over, Barry remembers Joe's letter and gives it to Iris only with Wally MIA. Deeply touched by her father's sacrifice to ensure her life, cries and expresses her gratitude to Barry for informing her of the events that transpired before the timeline was reset
--side notes and background fodder---
-Wally and Jessie
Because of their connection to the Speed-Force, the spirit of Zolomon (at some points showing his true form as the Black Flash), who embodies the darkness of the Speed-Force. Zolomon brings them inside the Speed-Force to destroy them, and regain life. There they meet the light of the Speed-Force in Max Mercury who must try and save them. They believe that once Barry reestablishes reality, they will be saved. This is not the case as the end of the season reveals; they stay stuck within the SF, awaiting rescue in season 4.
-Jay Garrick (from within the speed force and because he is of another Earth) is constantly thwarting Reverse-Flash's attempt to kill Flash. While Flash needs to fight RF, he can't, most times, figure out how and this leaves him vulnerable, this is where Jay winds up interfering enough times to create an interesting conflict between the 2. It will be revealed here that Jay received his speed through magic by Abra Kadabra
-It is revealed that Joe West's wife did not leave he and Iris while pregnant. Once Iris was in her early Teens, her mother's drug problems spiraled and resulted in her killing herself and a young Wally. After Wally's death, Iris is driven mad by the loss of her brother and mother. Wearing a mouth cover sporting giant grin and dubbed the Cheshire (which fills the Joker reference well enough while egging on the introduction of (the real) Cheshire into Arrow
Later on, Deadshot resumes in pursuing his daughter after he successfully saves
Captain Spivot
from his deranged daughter. In the final battle, Deadshot reveals of what he has learned from the Flash to Cheshire. Joe promises her that he would do everything it takes just to bring them peace. When Iris asks her father what would come of her mother, he reluctantly reveals her abandonment and death. Knowing she would lose her mother anyway, she collapses in tears, stumbling backwards and falling to her demise.
-(a powerless) Cisco, (this time, though without Snow) works in STARR Labs with Hartley for (the real) Wells. Wells' wife and daughter left him years ago, as he, much to their displeasure (as it was far too dangerous) was becoming Earth's greatest hero. As these 3 scientists are dispatched to an alien crash site, Cisco is drawn towards the green-glowing UFO while others are held back. However, Wells orders the alien be taken into custody.
Later, Wells' underlings are recruited by the President for a mission to build a nuclear weapon, funded by Queen Industries to bomb western Europe. At the moment in which they are to fire the long-traveling missile which will find its mark in New Gorilla City, Hartley figuratively and literally stabs his friend in the back, exposing his partnership with Grodd out of fear; described by him as being the smart choice.
-a stand-alone episode starring Jay Garrick, showing what he does when not slamming the door shut on Reverse-Flash's hopes of killing Barry. He battles an aged Ragdoll, who subsequently dies having never defeated his nemesis. The end of the episode shows his son promise to take the mantle. Somewhere in there Garrick mentions Shade. Garrick now has 4 enemies we know of, the previously mentioned Abra Kadabra, the new Ragdoll, Shade and (what looks to be) Reverse-Flash. Any of these guys (hopefully VERY sparingly when it comes to RF) can hop on over to Earth-1 and become Barry's antagonist.
-I've added some new characters like Deadman (who is already a part of this world I'd John Constantine is), Question and Sportsmaster who can be thrust into the Arrowverse after this.