This should have been either the first or the last episode of the season, because it's the prank that "worked" the best. The setup is that a giant megacorp has been experimenting on things they shouldn't have, and have opened a portal to another dimension that is rapidly leaking a mist that mutates anyone caught in it. The thing to understand is that normal people, when they encounter a scary situation they don't fully understand, tend to have one of two reactions: they freeze, or they run. Neither reaction plays particularly well on camera.
But every once in a while you get someone who is ready to be the action hero. They believe the reality of the prank and they are in it to win it. That is the reaction of the young woman on this episode, and it makes the prank so much more compelling. The other mark, a young man, pretty much just freezes with a worried look on his face but she, she is taking charge. Trying to get everyone rallied for an escape, pulling people back from attacking monsters, she is ready to be the hero. Very fun to watch.
