Thelma has great news, she's engaged. However, her opinion of great news differs greatly with her parents who hit the roof after learning this.
Tired of her reputation as easy, Rosalie Totsy tells the Sweathogs that she's pregnant -- and that one of them is the father -- in an effort to make the boys admit that the tales they tell about their ""fun dates"" with her aren't true.
A case of mistaken identity provides tragic circumstances when a hit goes wrong; Regan and Carter manage to break the hit-and-run ring, and then try to stop another accident.
Archie gets a rude shock when the tall,classy dame whose life he saved in a taxicab turns out to be a man.
Bitter explosive expert Robert Meyer arranges for the Liberty Bell to be stolen, rigs it with three bombs and demands five million dollars. Complications mount up and Steve Austin is forced to ask imprisoned bomb expert Linstrom to help defuse Meyer's handiwork.
Mary researches a documentary with the help of a priest. He eventually decides to leave the Church, and Mary thinks that he has fallen in love with her.
The crew of Los Angeles County Fire Department Station 51, particularly the paramedic team, and Rampart Hospital respond to emergencies in their operating area.
The Doctor and Sarah answer a distress call and find themselves on Zeta Minor, the last planet of the known universe, where a Morestran expedition has gone missing.
When a young woman shows up at the Jefferson's door with the news that she thinks that she's Louise's daughter, George has a fit and begins to doubt Louise. Especially since, the young woman was born while George was in the Korean War.
Bob's patients observe tradition by planning a surprise party to honor the fourth year of the group's therapy sessions. When an unseen member, a Mr. Gianelli, threatens to turn the party into a disaster, Bob kicks him out of the group. His decision meets with instant group approval until Mr. Gianelli dies under a ton of zucchini.
The cases of an easy-going ex-convict turned private investigator.
Julio has moved out of his house and Fred and Lamont decide to buy it and turn it into a boarding house and call it The Sanford Arms. To get enough money for the project, Fred and Lamont go down to the bank to apply for a loan but soon find themselves hostages in a bank robbery attempt.
A freezing night, an artillery barrage that's coming too close, a patient going downhill, and Frank's searching Hot Lips' tent for his letters.
The Fawltys take a holiday and leave Polly and Manuel to run the place just as O'Reilly's builders come to redo the lobby.
Captain Mainwaring gives a lecture on field craft in the vicar's garden, covering what to eat and how to erect a tent. Later, apart from having to put with the vicar, verger, Hodges and a gang of boy scouts, their field maneuvers are also interupted by three German fliers who have been shot down and are trapped in their dinghy in the middle of the lake... ""Handi hoch! Handi hoch!""
Approaching an inhabited planet, the Alphans are suddenly pounced upon by warships. In an unprovoked attack, Moonbase Alpha is devastated by Earth-style Hawk fighters. With 128 dead and Alpha unable to sustain life, Koenig and Helena appeal to the aliens for mercy. The aliens proclaim the Earthmen to be an invading virus, with no right to exist.