A newly married man asks Dr. Welby to perform a vasectomy. The man believes he has Huntington's Chorea and fears passing the disease down to his children. Welby and Kiley calm the heartbroken wife while attempting to confirm the diagnosis.
While visiting a drug rehab clinic, Dr. Kiley is shocked to see that one of its patients is Mr. Chambers, who used to own an auto repair shop and gave Kiley his first job in order to save money to go to college. Chambers' life fell apart after his daughter was killed in a car accident--he lost his business, became addicted to heroin, turned to crime to support his habit and served a stretch in prison. Kiley is determined to help Chambers get is life back on track, but he runs into unexpected difficulties.
Cathy Cullen is a pretty high school senior girl comes out of her shell after a successful diet. Shedding her former wallflower self, Cathy quickly becomes popular with boys ... too popular, as she soon contracts a venereal disease. Welby presses for answers as Cathy continually resists treatment and refuses to reveal from where she may have transmitted VD.
A brilliant trial attorney named Corday - an old Navy friend of Welby's - refuses to interrupt a landmark case for treatment of cancerous lymph nodes. Corday's stubbornness rubs off on his junior partner, who is also suffering from health issues of his own ... and it may cost them much more than a judgment in their favor.
Scientist Rick Rivera suffers from the physical and psychological after-effects of ingesting hallucinogenic drugs during a trip to Mexico. It is up to Welby to help Rivera cope and force him off the drugs.