Danny is picked to be principal for the day, and has great ideas on how to improve the school. However, an evil dinosaur-like alien pretends to be Wendy, and attacks Chris and Cathy. Meanwhile, Sam is trapped by the real Wendy, who wants to be 'Miss First Aid of Single Town Middle School' when she falls over while running after her bus.
(this is episode 20 on DisneyXD USA)
