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Dave and Matteo rush to the hospital after making a chilling discovery at an old friend's house party.

Linda and Matteo attempt to make an emergency broadcast, while Dave splits to save Katie before it's too late.

The crew returns to the hospital in search of survivors. With time ticking, Linda makes a drastic decision to uncover the source of the epidemic, resulting in a shocking discovery.

As Dave's hallucinations get worse, he makes a risky decision to try and get some answers.

Dave must convince Matteo, Linda, and Katie to make a dangerous flight to a mysterious island.

After a treacherous crash landing, the crew struggles to stay awake as they face extreme hallucinations.