The fifteenth season of the American animated sitcom South Park began airing on Comedy Central on April 27, 2011 and ended on November 16, 2011. In response to reactions to the mid-season finale episode "You're Getting Old", which seemed to insinuate that creators Trey Parker and Matt Stone were wrapping up the series, Comedy Central proclaimed through the media that South Park was renewed for two more seasons, and the duo were signed through 2013. Shortly before the airing of the season finale episode "The Poor Kid", South Park was extended again until 2016, taking the show to 20 seasons.
Kyle is intimately involved in the development of a revolutionary new product that is about to be launched by Apple. Meanwhile, Cartman doesn't even have a regular iPad and blames his mother.
At the school's first annual Comedy Awards, Jimmy announces that the Germans are the least funny people in the world. Germany is highly insulted. They vow that retaliation toward the kids at South Park Elementary will be swift and brutal.
The Prince of Canada is about to take a Princess and Ike is obsessed with the Royal Wedding.
Cartman is furious when he believes that the school has posted their penis sizes on the bulletin board. He throws an absolute fit; takes matters into his own hands and once again finds himself in the principal's office. This time he gets sent to anger management therapy.
Cartman has a new protege. He's found someone who is smart, ambitious and willing to look the other way in order to get to the top.
Kyle is brought in on the ground floor of Cartman's latest business venture, the Crack Baby Athletic Adventure.
Butters is diagnosed with multiple personality disorder. Meanwhile, the owner of City Wok is angered when a competing Asian restaurant opens next door.
After Stan celebrates his 10th birthday, he begins to see everything differently. The other boys think he's become a major buzzkill and start to avoid hanging out with him. When Stan and Kyle have a major blow up, the very fabric of South Park begins to unravel.
Cartman finds a unique way of coping with Asperger's Syndrome. Even Kyle and Kenny are on board. Meanwhile, Stan can't seem to get his life back to normal no matter what he tries. Will anything ever be the same in South Park again?
What begins as an innocent game between the boys turns serious when Cartman joins the U.S. Border Patrol. Not surprisingly, Cartman turns out to be really good at stopping Mexicans.
The students of South Park Elementary are the victims of a new gossip website. An elusive hacker has somehow gained access into the student's confidential phone calls and e-mails and is posting all their juicy stories. The boys are shocked when they discover the identity of the hacker.
Sharon is thrilled that Randy is making an effort to do more things that she enjoys. But, after he takes her to see a hit musical in Denver, Randy becomes Broadway’s biggest fan. Sharon is whisked away to New York and treated to every musical on the Great White Way.
The kids at South Park Elementary are being punished for Cartman's failings in the physical education department. What will Cartman do when they all gang up on him?
After watching a Thanksgiving special on The History Channel, the boys believe that aliens were involved in the original feast. But, questions remain... was the first Thanksgiving haunted? Is alien technology responsible for stuffing? The truth could change Thanksgiving for everyone.
With their parents in jail, Kenny and his brother and sister find themselves in the foster care system. Cartman is sincerely disturbed when Kenny is taken away. He doesn't know who to rip on for being the poorest kid in school anymore.