A policeman is shot and killed by an assailant. The evidence points to the murderer being a local thief, currently enjoying a reign of terror in San Francisco, but soon the investigations lead elsewhere.
Ma Colter tries to dissuade her youngest son from following his older brothers into a life of crime.
Lucy Carter, a widow with two teen children, takes a job as a secretary for her stuffy brother-in-law.
When Ida, Rhoda's mother, visits, she sees how well Phyllis and Bess get on, and how closely Mary appears to her mother when they chat on the telephone, that she tries to be Rhoda's ""friend"".
On the Stivic's first wedding anniversary, the family recalls the day Archie and Michael met.
Syndicate boss Delaney controls the waterfront and eliminates any potential witnesses - the IMF have 72 hours to bring him to justice before the grand jury closes. Barney infiltrates Delaney's waterfront organization and sabotages it, while Jim is a captain of a Norse ship, The Orion, on which Delaney once killed a man. Casey poses as the dead man's daughter and tries to implicate Delaney. The team capture Saunders, Delaney's killer, and Barney then claims to be employed by Delaney's Syndicate liaison Morgan and forces Saunders to set up a meeting on-board the Orion. Saunders ""escapes"" and warns Delaney, and they kill Morgan. The Syndicate head Mr. C is also present, lured to the ship, and witnesses the killing. He leaves one of his men to kill Delaney but the police arrive and Delaney testifies in return for protection.
Danny's sore throat is diagnosed as tonsillitis and he has to have his tonsils removed. He is nervous about the operation, and when it is over, he is nervous about losing his voice.
Greg is furious when he discovers Marcia is dating Warren Mulaney, his arch rival who beat him out in a basketball rank. To get revenge, Greg begins dating the woman who beat Marcia out in cheerleading.
The land is covered in pollution and the Goodies suspect corruption.
When the Judge tricks Brett and Danny into identifying a dead woman found floating in the waters of the French Riviera, they end up investigating an international stock swindle.
Hannibal Heyes and Kid Curry, two of the most wanted outlaws in the history of the West, are popular "with everyone except the railroads and the banks".
The Stephens are sightseeing in Rome, and Endora tries to test Darrin's loyalty by bringing the famous Venus statue to life. When Darrin meets her (now named Vanessa), he misses an important meeting with a client named Mr. Baldoni, who also falls for Vanessa. Samantha, deciding that this is just too much, takes it upon herself to bring the famous Adonis statue to life. Adonis and Vanessa meet and fall in love instantly and are zapped back to the museum in their original forms- but with a small difference: they hold hands!
Reuben sets up an aggressive summer tour schedule. Shirley does not want to go on tour as it is tiring to drive all day and sing all night, so they hire a bus driver. But Danny is suspicious when they find out that he's an ex-con.
A hippie robs an embezzler of the key to a locker containing $250,000. Meanwhile, Danno is trying to contact the daughter of his Berkeley University landlady, who happens to be the hippie's girlfriend…
A prisoner is denied parole for no clear reason, and the Chief's investigations lead him to a woman who seems to have supernatural powers. With his team clearly taken in by the apparently inexplicable events going on, Ironside has his work cut out trying to find a rational explanation.
A circus owner asks the trio for help in finding out who's committed sabotage and murder in the big top.
Lucy Carter, a widow with two teen children, takes a job as a secretary for her stuffy brother-in-law.
Dr. Chapman is arrested by Festus when he tries to sleep in Doc's office even though he has explained that Doc went to Baltimore to hone his medical skills. A letter explains that Doc felt so badly about a little girl's death that he could have prevented if he had been more in tune with modern medicine, that he had to leave. Not many in town are very cordial to Dr. Chapman and when Newly's shop blows up with Newly and Festus in it, they dislike him even more. Festus is all right, but Newly has a bone splinter in his brain and needs an operation. Chapman wins the town by performing the operation and saving Newly's life.