‘The Flash': 5 Things to Know Before Barry Sets ‘The Trap’ for Reverse-Flash

Revelations abound in latest episode as clock ticks toward season finale of The CW superhero drama

In tonight’s aptly titled “The Trap” episode of The CW’s “The Flash,” the DC superhero and his gang of friends set a trap for their arch nemesis, but of course things don’t quite go according to plan.

With three episodes to go before the show’s first season finale, big things are happening every week, and this latest episode similarly offers no shortage of revelations and game-changing twists.

Things pick up directly where they left off, with Barry (Grant Gustin), Cisco (Carlos Valdes) and Caitlin (Danielle Panabaker) slack-jawed after discovering the secret lair of Harrison Wells (Tom Cavanagh), where definitive proof lies once and for all that he is, indeed, The Flash’s arch-nemesis Reverse-Flash.

The revelations contained within the first few minutes of “The Trap” are mind-boggling, but that’s just the beginning of the twists and turns the episode takes. Below are five only mildly spoiler-ish things to expect in the newest episode of “The Flash.”

Past, present, future: “The Flash” has always relied heavily on the past and future in its storytelling, and in “The Trap,” both sides of the timeline are weighing heavily on our heroes in the present. There are flashbacks aplenty, especially between Joe (Jesse L. Martin) and Wells on the night of the S.T.A.R. Labs accident, and as for the future, many clues about where things are headed are revealed in a new look at the newspaper from 2024 first glimpsed in the pilot. Keep an especially close eye on the article’s byline.

There’s still time to play hero: As Barry becomes more embroiled than ever in solving the mysteries in his own life, he still makes time to save lives. This week, when faced with another life-or-death scenario, he finds one more use for his power. As we already know, The Flash is much more than just about going really, really fast.

Dreams as investigative tools: Science on “The Flash” is rooted in comic book mythology and not necessarily grounded in reality, but the nerds of S.T.A.R. Labs use a very real phenomenon called “Lucid Dreaming” — wherein the subject knows they’re dreaming — to do some further digging on their investigation into Harrison Wells. But can dreams really be trusted?

Artificial Intelligence: Sentient robots are all the rage right now, with “Chappie,” “Ex Machina” and “Avengers: Age of Ultron” burning up the big screen, and now “The Flash” gets in on the game with some new revelations about Wells’ computer, Gideon. Like just about every other character on this show, she’s full of surprises.

Iris is a damn good journalist: Iris West (Candice Patton), despite being Joe’s daughter, Barry’s best friend and Eddie’s (Rick Cosnett) girlfriend, remains the one lead character who still doesn’t know about Barry’s superhero alter-ego. Despite the determination of the men in her life to keep her in the dark, Iris is a smart cookie who discovers more than ever in her ongoing investigation into The Flash. How close does she come to the truth? It certainly spooks the person she chooses to confide in.

“The Flash” airs Tuesdays at 8 p.m. ET on The CW.