Frankenstein's Monster the Third tricks Danny and The Partridge Kids into coming to his castle to discuss a singing engagement.
While visiting Velma's former school, the gang runs into Tim Conway, who's coaching there. Now it's up to them to unmask the ghost of a former athlete who's running amok...
Felix comes up with a scheme to prove he is more physically fit than Oscar.
Lamont and Julio go out one evening to shoot pool leaving a left-out Fred behind to sulk. Fred soon finds himself a witness to a burglary when he confronts two thieves burglarizing Julio's house. Later, Fred refuses to testify and identify the culprits out of fear and a frustrated Lamont and Julio put a plan into motion to get him to, and it starts when Fred's truck is stolen.
The Protectors are called to deliver the ransom for the kidnapped daughter of a Danish aristocrat.
Sketches include about shouting in a library, going for a driving test, we find out how to care for the sick, Ronnie tells us how things are going on the home front, and we see the main production, which is called Colditz. The performances in this episode are by Pan's People, who perform a dance routine, and the singer Dana.
In order to stop a psychotic priest-killer, Stone goes undercover as a Roman Catholic priest. The victims were all clergymen who studied at the same seminary.
The Chief meets Alexandra, an old girlfriend with whom he is still very much in love. When he finds that the feeling is mutual he hopes to be able to settle down with her, even though he knows that she is an incorrigible thief, and that she is after the ancient Chinese statue he has been detailed to protect.
The family struggles with financial crisis and the electricity is turned off. Grandpa sets out to raise some money but tells no one about his plans. Grandma becomes angry and Grandpa moves out. The bill is paid and the angry grandparents make-up at a barn dance.
After drinking bad water during a drought, Caine recovers at the farm of an ex-slave who has a working well, but one who is so angry he is not willing to share with his thirsty neighbors.
When a large amount of diseased rats are found on a boat with all the crew dead, Five-O must contend with an outbreak of bubonic plague.
A wounded Matt Dillon suffers amnesia then falls in love with a widow. Matt's first TV kiss, not to Miss Kitty, but to guest star Michael Learned.
Lucy Carter, a widow with two teen children, takes a job as a secretary for her stuffy brother-in-law.
Webster is asked to play the role of a prisoner at the State Prison. He disguises himself as an inmate, in an effort to aid the issue of prison reform. However, when the other prisoners discover that Webster is merely pretending to be a fellow inmate, pandemonium results.
Viveca Scott, the founder of Beauty Mark Cosmetics, is being threatened by her rival David Lang. When he finds out that her revolutionary cream formula actually removes wrinkles, he has the formula pirated.
Keith wants to date the new girl in school, but she does not want to go with him because he has a love 'em and leave 'em reputation. He wants Laurie to convince Dina to go out with him.
A trip to Peoria turns into one long embarrassment for Bob when Jerry introduces him to a pretty girl named Janine. Janine doesn't seem to care that Bob is a married man.