Danny is offered a part where he has to appear nude. When he approaches the director with his concerns Danny finds out the director which also been naked.
Kathy is upset to find that Danny has invited a guest for dinner on informal "hamburger night", but her attitude changes when she learns that "Frank" has the last name "Sinatra".
When Kathy's old chum Lucy comes to stay a few days, neither has any idea how awkward things will get when Danny returns home early from his out-of-town engagement.
Linda's date shows up with long hair and wearing hippie garb. This upsets Danny and he decides to follow the couple on their date, suspicious as to what might occur.
After an incident Danny believes Kathy should take a martial arts class for self defense. But her enthusiasm for the activity has Danny worried that his wife is losing her feminity.
Danny tries to give Rusty a refrigerator which he politely refuses. But Danny insists and his son decides to teach his stubborn father a lesson about his generosity.