Malcolm is hospitalized for an appendectomy; Francis stages a hunger strike at Marlin Academy.
The twins' dad comes for a visit, but when it's time for him to go Zack decides he would have more fun on the road with him then at the Tipton with his mom. When Maddie is in danger of failing PE class, London trains her into shape.
Buffy’s initial trouble adjusting to college life is soon overcome when she discovers the only difference between high school and college is that the monsters are bigger and badder.
Scully searches for a way to reverse the process that caused Mulder and Morris Fletcher to swap identities.
Walker and Alex are trapped on board a crashed plane that sinks to the bottom of a remote lake.