You begin to realize something is wrong by the reaction of the stewardess and the air marshal. It turns out the passenger in 23b is not a person at all. Its a robot! The robot realizes the gig is up as the air marshall approaches. It suddenly explodes, blowing out a section of wall with it. Passengers are being sucked out the hole. Suitcases are thumping off of you and the plane is going into a spin.