This is a recording of the first class of the semester at college. The guy at the front starts to tell the class what will be expected of them that year. He also tells them that the majority of them will most likely fail as the course is so difficult.
At the end of the video, after he has made the students stand, sit, put away their laptops and put away their phones, the real professor walks in and asks who the hell he is. The guy pretending to be the professor then runs as quick as he can up the stairs and out of the back door. So funny