When Carly and her best friend Sam improvise comedy at a school talent show audition, tech-savvy Freddie records it and posts it online without informing them. After seeing the girls' strong chemistry and banter, the online audience clamors for more, and the iCarly webcast is introduced. The three teenagers find their normal adolescent lives thrown for a loop when they discover that they have become online sensations as their show – which features talent contests, recipes, problem-solving, and random dancing – garners international accolades.