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The Flash season 6 episode 15 recap: Team Flash performs their first exorcism

The Flash season 6 episode 15 recap: Team Flash performs their first exorcism
Nash Wells (Tom Cavanagh) is mentally tortured by Eobard Thawne (Tom Cavanagh) on The Flash. Pic credit: The CW

The Flash is back, and Barry has to face his greatest enemy with limited speed powers.

Eobard Thawne/Reverse-Flash has somehow possessed the body of Nash Wells and once again threatens everything that Barry loves.

But after the death of the Speed Force, Barry only has access to the very limited residual speed power lingering in his DNA.

Thawne is a tricky character, so at first, he’s able to masquerade as Nash and convince Team Flash into doing something that lets him escape the pipeline.

Barry stopped him from taking off in a time pod but nearly killed Nash in the process. Thawne always did know how to get under Barry’s skin and uses his anger to siphon off even more of his speed powers.

Reverse-Flash returns as Team Flash attempts a scientific exorcism

Meanwhile, Mirror Iris and Mirror Kamilla are sent on a mission to retrieve a device called the prismatic refractor, which is capable of converting light into energy.

It’s part of Eva’s plan to get out of the Mirrorverse. Eva gives them a replica she built and sends them to find it and switch it out.

They discover that the device has been sold to Mercury Labs, but when they go to steal it themselves, someone else drops in to take it ahead of them.

She’s another light-based meta named Sunshine. Mirrors Iris and Kamilla decide to call the Flash and let him take care of it for them.

But when they call Team Flash for help, Caitlin/Killer Frost insists that Barry sit this one out. He should be saving his speed, and she can handle it.

But Barry has never been good at sitting out, so he takes a speed booster and rushes in to help anyway.

Unfortunately, the speed booster causes a glitch in his powers that ends up getting Caitlin hurt and allows Sunshine to escape. Guess he should have listened to Caitlin.

But at least they kept Sunshine from getting the refractor.

The Flash season 6 episode 15 recap: Team Flash performs their first exorcism
Mirror Iris (Candice Patton) and Mirror Kamilla (Victoria Park) receive orders from Eva (Efrat Dor) on The Flash. Pic credit: The CW

It looks like Carver was trying to steal back his own technology, but what does he want the prismatic refractor for?

Mirror Iris is working overtime to get this device for Eva, but in the process, she’s making uncharacteristic missteps, like ignoring Barry when he needs her.

Joe definitely takes notice.

Mirror Iris gives Barry a pep talk, trying to tell him that his speed isn’t what makes him a hero and that all metas have a weakness to exploit.

Joe arranges to have the device transferred to ARGUS for safekeeping. However, he and Commissioner Singh are afraid there might be a mole at CCPD and that there’s a risk of an ambush.

Well, there is an ambush.

But Barry figures out Sunshine’s weakness and lures her into a place without access to sunlight, neutralizing her powers. However, while everyone is busy, Mirror Iris switches out the refractor for the replica.

Whatever Eva needs it for, she’s one step closer to carrying out her plan.

Mirror Iris (Candice Patton) pretends to console Barry (Grant Gustin) on The Flash. Pic credit: The CW
Mirror Iris (Candice Patton) pretends to console Barry (Grant Gustin) on The Flash. Pic credit: The CW

Back at STAR Labs, Cisco and Cecile are attempting a scientific exorcism to free Nash of Thawne’s consciousness. But Thawne is strong.

Nash has deep grief and remorse over the death of his adopted daughter that Thawne exploits to try to break Nash. The more negative energy he can produce, the stronger that Thawne becomes.

Barry and Cisco use the MAD 2.0 to enter Nash’s mind. Barry faces Thawne, using his love for his daughter Nora to combat Thawne’s attempt to anger him.

Cisco convinces Nash to face the memory of his adopted daughter’s death since it’s the only way to escape and heal.

We finally learn Nash’s connection to Allegra

Nash had been an Indiana Jones-type adventurer, treasure hunter, and myth buster.

He took an orphaned girl under his wing and trained her in this unique profession, telling her that the number one rule is that “the prize is everything.”

Unfortunately, this ethos got her killed in the end. Nash ultimately faces his denial and accepts his responsibility for her death.

They are finally able to exorcize Thawne from Nash’s body by blasting him with positive tachyons. As always, Thawne is gone but not dead.

They’ll be ready for him when he comes back because Barry has a plan to use Nora’s journal to build his own Speed Force, like Thawne’s but with love instead of negativity.

Nash may be rid of Thawne, but the brainwaves of a multiverse of Harrison Wellses are forever intertwined with his. He’ll be seeing their ghosts forever, but maybe that’s not such a bad thing.

The Flash airs Tuesdays at 8/7 C on The CW. 

Bethany Lewis is a writer, traveller, fan, and film critic. She has an MFA in Film Studies, but has been a student of cinema since... read more

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