Welcome back to the tri-state area where anything that can go wrong, will go wrong! Milo, Zack and Melissa, with their new neighbors Phineas and Ferb, work together to stop the pistachio invasion! Then, Milo and Zack encounter dangerous, snow-related obstacles on their way to school, Milo looks to finally snap a successful school photo on picture day, and Amanda and Milo compete on the Extreme Baking TV Show! Plus, Doof is the houseguest who won’t leave and Sara wants him OUT. What could possibly go wrong?