A high school couple have discovered a cave, which harnesses a strange power. A light source, which, when you step into it, violently shakes your body while at the same time giving the person the ability to move incredibly fast.
A sheriff's deputy is killed while on patrol. The damage to his head is quite severe. His eyeglasses end up through the back of his head. The only eyewitness is a high school boy. He is arrested. But Mulder does not believe he could have done it.
They go to the school to talk with his friends and meet one Max Harden, son of the Sheriff. He later has a fall out with a teacher when he takes a test in one minute and gets every answer correct. The teacher gives him an 'F' and accuses him of cheating.
Later in the dining hall the teacher is trips over and the entire student body laugh. Next we see Max standing at the top of the room, then he twitches and a table shoves the teacher along the floor followed by a chair. Max also tries to kill his own father but is saved by Tony, the new kid trying to fit in, who also has taken the Rush. This was another great episode, which is surprising to me because I usually prefer the ones with aliens.