In 'Think Fast,' DeVoe infiltrates A.R.G.U.S. while Team Flash prepares to destroy his satellites.

By Chancellor Agard
May 15, 2018 at 10:38 PM EDT
Jack Rowand/The CW

The Flash

S4 E22
  • TV Show

Heartbreak has done wonders for Clifford DeVoe! Tonight, the Thinker was the most entertaining he’s been since he debuted, and kicked off the episode on a very exciting note. “Think Fast” began with a very fun scene in which DeVoe, masquerading as Diggle, infiltrates an A.R.G.U.S. facility and summons all of his powers to take down the agents guarding Fallout as the Hallelujah chorus from Handel’s Messiah plays. Without Marlize there to hold him back, DeVoe is free to embrace his violent impulses and goes full showman as he lectures the agents in the process in this visually exciting sequence. Neil Sandilands also looks like he’s having quite a ball, too. If only the rest of the episode could live up to this opening scene!

“Think Fast” is the penultimate episode of the season, but there are long stretches of it where it doesn’t really feel like it, and it never feels like the characters are racing against the clock. Luckily, the hour’s final scenes don’t disappoint. It’s just a shame that everything in the middle couldn’t live up to the bookends. (All of that being said, “Think Fast” does point out that the writing team deserves some kudos for how intricately they plotted this season.)

Anyway, after that amazing opening sequence, Team Flash is alerted to the situation at A.R.G.U.S. when Borman’s body temperature starts rising as he’s about to go critical. A quick check-in with the real Diggle confirms that DeVoe is up to no good (shoutout to Arrow‘s David Ramsey for cameoing). The gang quickly deduces that DeVoe wants Fallout to go critical so he can then shrink his containment unit and use it to fuel the Enlightenment. And they only have 12 hours to stop him!

Unfortunately, Barry can’t just zoom into A.R.G.U.S. because the facility is covered with plates that will electrocute him and explode if he steps on them, and DeVoe is holding hostages over said plates. So, Barry reasons that the only solution is to use Flashtime, but that still won’t save him and the hostages from getting blown up by the plates. Thankfully, he’s not alone! Cisco and Caitlin volunteer to enter Flashtime with him and to help save the hostages while he rushes ahead to jump through DeVoe’s breach before he disappears. This sounds like the perfect plan, but of course, Barry’s resistant.

Even though we’re a few weeks out from Ralph’s death, it still weighs heavily on Barry’s mind, and now he’s worried about risking Cisco and Caitlin’s lives in Flashtime (because he never puts their lives in danger). It doesn’t help that Flashtime training — which saps a lot of the tension out of the episode and detracts from the race against the clock — doesn’t get off to a great start, either. At one point, Barry decides that it may be best to go at it alone, which leads to a big scolding from Cisco, who points out that Barry isn’t the only one who feels guilty about what’s happening. Sure, Ralph died after Barry trained him, but Cisco also bears responsibility for allowing DeVoe’s plan to get this far in the first since he’s the one who freed Barry from the Speed Force at the beginning of the season. This conversation has been a long time coming, and ultimately ends with Barry agreeing to resume Flashtime training. (Next: The Enlightenment begins)

Eventually, the time comes for Team Flash to rush into the field and confront DeVoe. While Cisco and Caitlin deal with the hostages, Barry races toward DeVoe and manages to jump through the breach in time to follow him to wherever he plans on launching his satellites. Using Amunet’s metal shards, Barry manages to destroy one of the satellites; however, that’s only a temporary problem for DeVoe, who has a back-up plan: S.T.A.R. Labs’ satellite, which he hijacks and uses to start the Enlightenment. This is the first time when enlightenment isn’t a good thing!

However, all hope isn’t lost! While Barry, Caitlin, and Cisco were preparing for their trip to A.R.G.U.S., Iris and Harry, whose brain function has deteriorated severely, were busy searching for Marlize. Thanks to both Harry and Iris’ willingness to put themselves in Marlize’s shoes (it understandably takes Iris a bit longer to empathize with the woman who stabbed her), they track her down to the DeVoes’ first apartment together. Marlize is very intrigued by Harry, who is a walking example of what will happen to everyone once DeVoe launches the Enlightenment, but she isn’t jumping at the opportunity to help Team Flash until Iris reminds her of the optimism she felt before meeting DeVoe. Given this season’s new focus on the power of emotions, it’s pretty obvious that Marlize will play an important role in the final battle.

Speaking of emotions: Caitlin makes a significant breakthrough in tonight’s episode. At the beginning of the episode, Caitlin meets with Dr. Finkle about Killer Frost and suggests that Caitlin may be suppressing something traumatic from her childhood. Initially, Caitlin resists this idea, but during Flashtime training, she flashes back to a memory of her getting hit by a truck. Once the A.R.G.U.S. mission wraps up, she asks Cisco to vibe her to that memory, and she discovers that she turned into Killer Frost when she was younger. What the what?!

This major development raises a couple of questions: Does this mean that pre-Flashpoint Caitlin was Killer Frost, too, or is this a Flashpoint change? Also, why am I still thinking about Flashpoint a year and a half later? While I’m going to reserve judgement on this reveal for now, I will say that it feels like this is coming at an odd place in the season since next week’s episode is the finale. I’m very interested in seeing how the show follows up on this next week and whether we’ll return to it in season 5.

Wall of Weird:

  • Over in the wacky corner of the episode: Cecile’s psychic powers grow and grant her the ability to take on people’s personalities, which generates a few laughs but ultimately feels like the show is trying a bit too hard to be funny. However, I love watching Danielle Nicolet act, so I’m not complaining.
  • It turns out Dr. Finkle charges members of Team Flash by the quarter hour because none of them make it through an entire session.
  • “I hate you,” Diggle, to Barry, after throwing up because Barry super-sped him to Central City.
  • “You know what my favorite part of teaching is? Having a captive audience,” DeVoe in full villain mode.

Episode Recaps

The Flash

After the success of Arrow, Barry Allen (a.k.a. The Flash) gets his own CW treatment in this comic-themed spin-off.

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