Carly gets a B on her history paper and becomes upset because she thinks she deserves better. Sam hacks into the school computer to change the grade and all is fine until Carly has to deal with her guilty conscience.

Carly's show's 50th airing is coming up but Sam gets detention. Carly and Freddie do bad things to get in detention to shoot the show from there. Meanwhile, Spencer drops his phone into a large coffee cup built by him

Principal Franklin is fired after appearing as a guest on iCarly; Spencer hires a rodeo star to teach him how to ride a mechanical bull.