Adam thinks he's seen a UFO outside his window, and his sisters are convinced they've seen an alien in the kitchen.

News of the sudden arrival of Commander Powell throws the household into chaos.

The death of a lifelong friend causes Walter to have visions of mortality, so Charles summons Walter's father, Buzz (Dabbs Greer), for a visit in order to show him his son has many years left.

Charles and Buddy decide to pledge a fraternity, and must put up with a series of humiliating tests and activities during "Hell Week."

When Charles and Buddy foil an attempted holdup at the pizza parlor, their names appear in the local newspaper. They can't resist capitalizing on their new-found popularity with the girls at the sorority house.

When the Powells learn their house is to be sold and Ellen loses her job, Charles takes to bed with a sneezing fit and falls asleep.

This is just not Charles' day. He's trying to prepare for the new school year, but Buddy needs his help in planning their end of summer party.

Confused by the instructions that came with a new stereo component rack, Charles is frustrated trying to assemble the unit.

The kids each must find a gladiator to represent their class in the school's stunt-filled quiz contest complete with pies in the face and a dunk tank.

While Commander Powell is home, Sarah is arrested for protesting the nuclear weapons on her father's ship.

Charles' professor disagrees with the grade he gives a student.

Adam studies Charles' dating techniques.