Season 6

Len Dalton is unable to secure a position as a pilot, fearful of losing the affections of his girlfriend and suffering from post-operation depression, he contemplates suicide. After visiting Dr. Welby for a checkup, Dalton tries to persuade Consuelo to give him some sleeping pills. When his pleading fails, he obtains the drug from another source and tries to end his mental anguish forever.

"The Outrage" is a 1974 episode of Marcus Welby, M.D., a long-running American medical drama on ABC. The episode tells the story of a teenage boy who is sexually assaulted by his male teacher. The episode, which originally aired October 8, 1974, sparked controversy and anger for its equation of homosexuality to pedophilia. "The Outrage" was targeted for protests by LGBT rights groups and several network affiliates refused to broadcast it.

Dr. Welby and Kiley fight to save the life of a three-year-old boy, whose mother will not allow the child to be given proper medical treatment because of her fanatical beliefs.

Even though Dr. Welby gives him the best treatment modern medicine can provide plus wise counseling and encouragement, Williams has a difficult time adjusting to an entirely different way of life after having to give up his career because of his affliction.

Dr. Welby treats a young girl who almost drowned. His biggest challenge is getting through to the girl's mother who adamantly will not let her hearing-impaired daughter be seen by a specialist.

A career woman, delighted to be pregnant at last, joins Consuelo's medical care group for pregnant women.

Dr. Kiley takes Susan Davis out to dinner to celebrate the first annivesary of her operation. When Kiley takes her home, he leaves, but then he hears her scream. At length he succeeds in battering down her door, and finds that she has been sexually violated by her ex-boyfriend, Wayne Trent. Kiley takes Susan to the hospital. Later, he goes after Trent, who in attempting to flee, is seriously injured when his car crashes into a concrete pillar.

After Susan Davis has been molested by her ex-boyfriend, who has constantly harassed her, Kiley tries to find him. After an accident occurs in which the attacker almost dies, Kiley is subsequently charged with malpractice.

Dr. Welby has serious self-doubts when a young woman develops a cancerous condition, and blames him because of treatments he had recommended when she was a child.

Constant arguments between her parents because of her father's compulsive gambling, cause a girl to suffer from hyperventilation, a condition in which the subject's intake of oxygen is excessive.