Arrow (TV Series) Episode: Crisis on Infinite Earths: Part Four

"Part Four"

January 14, 2020

Directors

Writers

Previous Episode	Next Episode
"Purgatory" (December 3, 2019)	"Green Arrow & The Canaries" (January 21, 2020)

You have failed this universe!

—Oliver Queen

Crisis on Infinite Earths: Part Four is an episode of season 8 of Arrow. It premiered on January 14, 2020.

Synopsis for "Crisis on Infinite Earths: Part Four"

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Appearing in "Crisis on Infinite Earths: Part Four"

Featured Characters:

The Paragons (Multiverse)
- Batwoman/Kate Kane (Pre-Crisis Earth-1)
- The Flash/Barry Allen (Pre-Crisis Earth-1)
- Lex Luthor (Earth-38)
- Martian Manhunter/J'onn J'onzz (Earth-38)
- Ryan Choi (Pre-Crisis Earth-1)
- Supergirl/Kara Danvers (Earth-38) (Also in a vision)
- White Canary/The Canary/Sara Lance (Pre-Crisis Earth-1) (Also in a vision) (Also as a corpse)
The Spectre/The Hood/The Arrow/Green Arrow/Oliver Queen (Pre-Crisis Earth-1) (Flashback and main story) (Also in a vision) (First appearance as The Spectre) (Dies)

Supporting Characters:

Barry Allen (Post-Crisis Earth-1) (Cameo)
The Monitor (Mar Novu) (First appearance chronologically) (Flashback and main story) (Origin)
The Spectre/Jim Corrigan (Unknown Earth)
Speed Force Memories (In a vision)
Xneen Novu/"The Monitor" (Unknown Universe) (Single appearance; dies) (Flashback and main story)

Antagonists:

Damien Darhk (Pre-Crisis Earth-1) (Flashback only) (Cameo)
Dark Archer/Malcolm Merlyn (Pre-Crisis Earth-1) (Flashback only) (Cameo)
Deathstroke/Slade Wilson (Pre-Crisis Earth-1) (Flashback only) (Cameo)
The Dominators (Pre-Crisis Earth-1) (On a TV or computer screen) (In a vision) (Cameo)
Mobius the Anti-Monitor (Antimatter Universe) (Flashback and main story) (Also in a vision) (Origin)
- The Shadow Demons (Antimatter Universe)
Nyssa al Ghul (Pre-Crisis Earth-1) (Flashback only) (Cameo)
Prometheus/Adrian Chase (Pre-Crisis Earth-1) (Flashback only) (Cameo)
Ra's al Ghul (Pre-Crisis Earth-1) (Flashback only) (Cameo)
Superman/John Deegan (Elseworlds Reality) (In a vision)

Other Characters:

Channel 52 (Pre-Crisis Earth-1) (On a TV or computer screen) (In a vision)
Amanda Turner-Choi (Pre-Crisis Earth-1) (Mentioned only)
Prof. Dinah Lance (Pre-Crisis Earth-1) (Mentioned only)
Felicity Smoak (Pre-Crisis Earth-1) (Mentioned only)
God (Mentioned only)
Ghosts (Mentioned only)
Kryptonians (Mentioned only)
- Superman/Clark Kent (Earth-96) (Erased) (Mentioned only)
Lena Luthor (Earth-38) (Mentioned only)
Mar Novus of the Multiverse (Mentioned only)
Mia Queen (Pre-Crisis Earth-1) (Mentioned only)
Quentin Lance (Pre-Crisis Earth-1) (Mentioned only)
Time Masters (Pre-Crisis) (Deceased) (Mentioned only)
Victor Stone (Post-Crisis Earth-1) (Mentioned only)

Locations:

Multiverse (Flashback and main story)
- Antimatter Universe/Antiverse (First full appearance) (Flashback and main story) (First appearance as Antiverse)
- "Infinite Earths" (Unnamed) (Erased)
  - Pre-Crisis Earth-1 (Erased)
    - Earth (Flashback only) (Also in a vision) (Destroyed)
      - Hindu Kush
        Nanda Parbat (Flashback only) (Cameo)
      - United States of America (Flashback only) (Also in a vision)
        Central City
        S.T.A.R. Labs
        The Cortex (In a vision)
        
        S.T.A.R. Labs Hall (In a vision)
        
        Star City (Flashback only) (Also in a vision)
        The Bunker (In a vision)
        
        Palmer Technologies (In a vision)
  - Earth-Prime (First appearance; unnamed) (Cameo)
  - Mar Novu's Earth (Single appearance) (Unnamed) (Flashback only)
    - 80th Century BCE
      - Maltus (First appearance) (Single appearance) (Flashback and main story)
  - Post-Crisis Earth-1 (Unnamed) (Mentioned only)
  - Earth-96 (Erased) (Mentioned only)
- Elseworlds Reality (Erased) (In a vision) (Cameo)
  - United States of America
    - Central City (In a vision) (Cameo)
- Purgatory
  - Oliver Queen's Purgatory
    - Lian Yu (As an illusion only)
- Speed Force
- Temporal Zone (First appearance chronologically) (Flashback and main story)
  - Dawn of Time (Flashback and main story)
- Vanishing Point
  - Oculus Wellspring (In ruins) (Cameo)
  - Time Masters' Headquarters (In ruins)
- Alternate Earth-1 Future (Barry Allen and Kara Zor-El die saving Earth) (Unnamed) (Erased) (Mentioned only)
- The Dominators' Reality (Unnamed) (Erased) (Mentioned only)

Items:

The Anti-Monitor's Armor
Batsuit
- Utility Belt
Book of Destiny
Dark Archer's Bow (Flashback only) (Cameo)
Deathstroke's Suit (Flashback only) (Cameo)
Deathstroke's Sword (Flashback only) (Cameo)
The Monitor's Suit (Flashback and main story)
Nyssa al Ghul's Sword (Flashback only) (Cameo)
Oliver Queen's Bow (Flashback only) (Also in a vision)
- Trick Arrows (Flashback only) (Also in a vision)

Vehicles:

Dominators' Mothership (Mentioned only)
S.T.A.R. Labs Mobile Research Unit (In a vision) (Cameo)

Events:

The Crisis
Dominators' Invasion (In a vision)
The Elseworlds (In a vision)
The Siege of Starling City (Flashback only)
The Undertaking (Flashback only)

Concepts:

Antimatter
Big Bang
Flashtime
Magic
Metahumans
Time Travel
Wormholes

Notes

This episode is the fourth part of the Crisis on Infinite Earths crossover.
- The story continues from the The Flash episode, "Crisis on Infinite Earths: Part Three" and is concluded in the DC's Legends of Tomorrow episode, "Crisis on Infinite Earths: Part Five";
- The events of this episode take place one month after the epilogue of "Part Three".
While not shown in the episode, the DC Extended Universe is introduced as another Earth of the Multiverse with Ezra Miller returning as Barry Allen.
- It will be eventually revealed that the DCEU movies are actually set on the reborn, Post-Crisis Earth-1.
Barry Allen of Earth-1 meets an alternate Barry Allen in the Speed Force which should be impossible due to the destruction of the Infinite Earths.
- As the Speed Force is an extra-dimensional source of energy and exists across all space and time, this allows Barry to meet his Post-Crisis counterpart.
The Multiverse is rebooted by the combined forces of the Spectre and the Paragons.
- The real circumstances behind the rebirth of the Multiverse are eventually revealed in The Flash episode, "It's My Party and I'll Die If I Want To".

Trivia

Oliver Queen fighting the Anti-Monitor as The Spectre is an homage to the original Crisis on Infinite Earths where The Spectre faced the Anti-Monitor at the Dawn of Time in Crisis on Infinite Earths #10.
- The battle between the Spectre and the Anti-Monitor was originally foretold by Jim Corrigan in the Purgatory.^[1]
Barry Allen forces Oliver Queen to use his magical-based Spectre powers to project the Paragons into the unstable Speed Force.
- The real consequences of Oliver powering up Barry will be eventually revealed in The Flash episode, "Death of the Speed Force".
- While in the Speed Force, the Paragons relived some past events of Earth-1 history, like Oliver and Barry's first meeting, the Dominators' invasion and John Deegan's Elseworlds crisis.
This episode marks the first time a DCEU character appears outside of a movie.
- At this point in time, Barry Allen has already met Cyborg/Victor Stone and faced Steppenwolf,^[2] but he's really shocked by hearing Pre-Crisis Barry's superhero name.
  - As on-screen he was never referred to as the Flash, this is the very origin of DCEU Barry Allen's moniker.
- The cameo of Ezra Miller was requested by Peter Roth, head of Warner Bros Television, and Jim Lee so that it could be displayed the existence of a unique Multiverse, composed by every live-action and animated DC properties, allowing future crossovers.
Lex Luthor calls the team up with him and Mar Novu as "The Brave and the Bold" named after the comic series of the same name.

Recommended Media

None.

Links and References

Footnotes

[1] The Flash: "Crisis on Infinite Earths: Part Three"

[2] Zack Snyder's Justice League

[1]

[2]