Season 3

Doris throws a Christmas party at her apartment and invites Mr. Jarvis. However, not only does Jarvis turn down her invitation, but he threatens to call the cops if Doris and her guests make too much noise.

Doris is dismayed to see the state of the plants on her patio, which she learns are being slowly killed by sulfur poisoning, the nurseryman who can smell the sulfur in the air. She tracks the culprit down to a new sulfur factory, which she tries to shut down. She does slightly soften her opinion when she learns of sulfur's many uses, but still comes out of the meeting with the plant manager unsatisfied that they will not make the easy and quick fix to reduce toxic emissions at a $500,000 price tag. She gets permission from Colonel Fairburn, who is running the magazine in Nick's absence, to write an anti-pollution article, especially concerning her specific situation. When Doris finishes the story, she and Colonel Fairburn come to an unwanted epiphany: Fedderson is a subsidiary of Amalgamated Limited, the Chair of the Board being Colonel Fairburn. As such, the Colonel kills the story & Doris has to try to change the Colonel's mind. Mother Nature may give her a bit of a helping hand.

Doris' young niece pays a middle-of-the-night visit to seek her advice on how to patch up her marriage, which is crumbling because her college-student husband can't stand the thought of becoming a father.