On vacation in Los Angeles, Walter, the world's biggest Muppet fan, his brother Gary (Jason Segel) and Gary's girldfriend Mary (Amy Adams) from Smalltown, USA, discover the nefarious plan of oilman Tex Richman (Chris Cooper) to raze the Muppet Theater and frill for the oil recently discovered beneath the Muppets' former stomping grounds. To stage The Greatest Muppet Telethon Ever and raise the 10 million dollars needed to save the theater, Walter, Mary and Gary help Kermit reunite the Muppets, who have all gone their separate ways: Fozzie now performs with a Reno casino tribute band called the Moopets, Miss Piggy is a plus-size fashion editor at Vogue Paris, Animal is in a Santa Barbara clinic for anger management, and Gonzo is a high-powered plumbing magnate.