It transpires that they've all been unconscious, or at least unaware of their own actions, for about five hours. Following a brief stay at the local hospital, Jeff and company return to his home, an abandoned broom factory that he has converted into the coolest goth pad since Brad Pitt's home base in Fight Club . As they proceed to analyze their footage for clues about the five lost hours, creepy stuff starts happening. Various gore-filled hallucinations begin to afflict all concerned. Strange noises are heard outside in the woods.
Runic symbols begin appearing on everyone's bodies.
And a group of campers that had been encountered earlier is reported to have been brutally murdered. The paradigm of video always telling the truth is brought into question again and again here. So is the nature of reality. Read no further if you want to avoid all hints of additional plot points. It's impossible not to think back to Paradise Lost while watching.