Jack was being interviewed by rude tube.
But then Stephen came.
So he got a few questions too.
But then the interviewer asked him about the truck.
But Stephen didn't now that the movie about the truck also was on Youtube.
So he freaked out, smashing random objects on his cranium.
Greatest Freakout Ever - Rude Tube Interview promo
Greatest Freakout Ever Interview - Director's Cut (with flashbacks!)