Carly, Sam, and Freddie are planning on presenting iCarly's 50th webshow spectacular, but Sam accidentally hits Mr. Howard with a football and gets detention on the same day they were preparing to air the show. As a result, they decide to do iCarly in detention. Carly manages gets into detention, but Freddie can't, so he decides to do filming of iCarly secretly in a closet. Unfortunately, Mr. Howard comes into the room and sees them filming after saying bad things about the principal. Principal Franklin, having watched iCarly, shows up to send Mr. Howard to his office.