Facing his imminent demise in the coming crisis, Barry finds himself hallucinating Ramsey Rosso — who claims that Barry can save himself and everyone he loves by giving in to the infection now spreading through his body.

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PART ONE OF THE MID-SEASON FINALE

As Barry Allen (Grant Gustin) stands on the threshold of his impending death in Crisis, his convictions are tested when the monstrous Dr. Ramsey Rosso (guest star Sendhil Ramamurthy) infects The Flash with a mysterious, hallucinogenic contagion. Meanwhile, reporter Iris West-Allen (Candice Patton) uncovers a vast conspiracy.

Chad Lowe directed the episode written by Jonathan Butler & Gabriel Garza (#607).