Allison "Sonny" Munroe makes the leap from the Midwest to Los Angeles to join the cast of "So Random!," the most popular sketch comedy TV show for kids and tweens. Her fellow young actors are resident teen queen Tawni, super suave Nico, gregarious funnyman Grady and quirky Zora. Now Sonny must somehow balance these new friendships while adjusting to her family's decidedly different way of life in Hollywood. Meanwhile, Sonny must also contend with heartthrob Chad Dylan Cooper, star of the rival show "MacKenzie Falls," who makes it known that he thinks his dramatic work is better than her comedy career.
Sonny and Tawny's blossoming friendship turns sour when a popular gossip blogger posts the results of a poll, pitting the two teen stars against each other. Can their friendship survive when Tawny's ego takes a major blow?
Sonny finds herself the victim of bad publicity when a televised dispute between her and Chad hits the airwaves. Can she rally and rise above it, or will poor public opinion mark the end of Sonny's flirtation with fame?
Tensions rise on set when Sonny is asked out by Tawni's ex boyfriend, James, who is guest starring on Mackenzie Falls. And when James attempts to date both girls, Sonny decides to get revenge in the best way she can... by going on a date with Chad.
When the demanding daughter of a studio executive wants a set visit, Sonny is the unlucky cast member chosen to play tour guide.
When Sonny realizes she is missing out on that most important of teen milestones - prom - she decides to throw a prom for the cast, right there on set. But Marshall says a firm no. Will Sonny and her friends have a night to remember? Or is prom nothing but a distant dream?
Sonny has to find a way to break up a relationship she put together after her matchmaking goes awry.