10. Boom Crunch

Complete story — includes the ending

Katherine falsely accuses Mike of stabbing her. Concerned about Katherine's deteriorating mental state, Susan contacts Dylan, who arrives on Wisteria Lane and has Katherine committed to a mental institution. The feud between Gabrielle and Lynette continues to escalate. After manipulating Danny into revealing that his family has been on the run since Angie killed a man 18 years earlier, Mona blackmails the Bolens for money. Bree demands that Orson sign the divorce papers, showing him the pictures of him and Lamar. At Wisteria Lane's annual Christmas festival, Bree is furious to learn that Karl has hired a private plane to fly a marriage proposal over the festival. Upon discovering Bree and Karl's affair, Orson engages in a fistfight with Karl inside Santa's Workshop, which Bree attempts to defuse. As the plane crashes onto the lane, Mona is struck, Lynette saves Celia from being hit, and the plane smashes into the workshop while Bree, Orson, and Karl are still inside.