The Flash (2014 TV Series) Episode: Cause and Effect

"Cause and Effect"
Gallery
The Flash  Season 3: Episode 21
May 9, 2017
Directors	David McWhirter
Writers	Judalina Neira Lauren Certo
Previous Episode	"I Know Who You Are" (May 2, 2017)
Next Episode	"Infantino Street" (May 16, 2017)

It's the first time he hasn't been weighed down by the tragedies of his past, you know? First time he's actually been free of them.

—Iris West

Cause and Effect is an episode of season 3 of The Flash. It premiered on May 9, 2017.

Appearing in "Cause and Effect"

Featured Characters:

• The Flash (Barry Allen) (Flashback and main story)

Supporting Characters:

• Cecile Horton
• Central City Police Department
  • Det. Joe West (Flashback and main story)
  • Julian Albert
• Team Flash
  • Cisco Ramon (Flashback and main story)
  • H.R. Wells (Earth-19)
  • Iris West (Flashback and main story)
  • Kid Flash (Wally West) (Flashback and main story)
• Tracy Brand

Antagonists:

• Heat Monger (Lucius Coolidge) (Single appearance)
• Savitar (Barry Allen) (Origin)
  • Killer Frost (Caitlin Snow) (Flashback and main story)

Other Characters:

• Barry Allen's Time Remnant (Dies in flashback) (Cameo)
• Central City Fire Department (Cameo)
• Judge Hankerson (First appearance)
• Henry Allen (Flashback only) (Cameo)
• King Shark (Earth-2) (Cameo)
• Nora Allen (Flashback only) (Cameo)
• Reverse-Flash (Eobard Thawne/"Harrison Wells") (Flashback only) (Cameo)
• Zoom (Earth-2) (Flashback only) (Cameo)
• Cult of Savitar (Mentioned only)
• Eddie Thawne (Deceased) (Mentioned only)
• Hartley Rathaway (Mentioned only)
• Henry Allen (Flashpoint Timeline) (Mentioned only)
• Jay Garrick (Earth-3) (Mentioned only)
• The Legends (Mentioned only)
  • Mick Rory (Mentioned only)
• Nora Allen (Flashpoint Timeline) (Mentioned only)
• Ronnie Raymond (Mentioned only)
• Team Flash (Savitar's Timeline) (Mentioned only)
  • Barry Allen (Mentioned only)
  • Cisco Ramon (Mentioned only)
  • Iris West (Deceased) (Mentioned only)
  • Joe West (Mentioned only)
  • Wally West (Mentioned only)

Locations:

• Multiverse (Mentioned only)
  • Earth-1 (Flashback and main story)
    • Central City (Flashback and main story)
      • A.R.G.U.S.' Base (Cameo)
      • CC Jitters
      • CCPD Headquarters
      • S.T.A.R. Labs
        • Speed Lab
    • Keystone City
      • Iron Heights (Mentioned only)
  • Speed Force (Cameo)
    • Speed Force Prison (Mentioned only)
  • Earth-19 (Mentioned only)
  • Flashpoint Timeline (Mentioned only)
  • Savitar's Timeline (Mentioned only)

Items:

• Magnetar (Flashback only) (Cameo)
• Savitar's Armor
• Speed Force Bazooka (First full appearance) (Real name revealed)

Vehicles:

• Waverider (Mentioned only)

Concepts:

• Time Remnant
• Time Travel

Notes

• It is revealed that Savitar is paradox of the Post-Flashpoint continuity.
  • Somewhere in the future, a future Barry Allen creates time remnants to defeat Savitar who kills each one of them but one. However, after the God of Speed kills Iris and is trapped into the Speed Force by the future Barry, the estranged time remnant travels back in time and becomes Savitar, creating a time loop without end.
  • Savitar has to kill Iris in order to ensure his birth in the future.

Trivia

• In an alternate reality of an alternate Multiverse that was born as a consequence of Barry Allen never creating the Flashpoint Timeline, Savitar never came to exist as Barry never altered the timeline.

See Also

• 2 Images from The Flash (2014 TV Series) Episode: Cause and Effect
• Episodes of The Flash (2014 TV Series)
• Images from The Flash (2014 TV Series)
• Gallery for the The Flash (2014 TV Series) series

Recommended Media

• None.

Links and References

• None.

Footnotes