This season had the specials "iLost My Mind", "iDate Sam & Freddie", "iBloop 2: Electric Bloopaloo", "iStill Psycho", and "iMeet the First Lady".

Gibby, indignant at Sam now directing her violent tendencies towards him now that she is dating her previous target, devises a plan to break them up with the help of Freddie's disapproving mother.

After the first few episodes of this season, T-Bo moves into Freddie and Mrs. Benson's apartment in Bushwell Plaza after being evicted from The Groovy Smoothie.

This initially works, but Mrs. Benson later evicts him upon discovering his true personality, though she later has a change of heart and decides to let him stay after he rescues the gang from an obsessed fan.

In late January 2011, while doing press for her North American Dancing Crazy concert tour, Miranda Cosgrove began telling news sources that she was looking forward to returning to Hollywood to begin filming a 5th season of iCarly.