In the 1830's beaver trapper Flint Mitchell and other white men hunt and trap in the then unnamed territories of Montana and Idaho. Flint marries a Blackfoot woman as a way to gain entrance into her people's rich lands, but finds she means more to him than a ticket to good beaver habitat.
Jim and Connie's postwar New York building troubles keep Jim from working on his novel. Ex-WAC from Jim's army days Roberta moves in, further upsetting Connie but pleasing Jim's friend Ed. Tenant Charley, who marries tenant Eadie, loans money to Jim to help him keep the building, money which this Casanova obtains from rich widows.
Jerry Mulligan is an exuberant American expatriate in Paris trying to make a reputation as a painter. His friend Adam is a struggling concert pianist who's a long time associate of a famous French singer, Henri Baurel. A lonely society woman, Milo Roberts, takes Jerry under her wing and supports him, but is interested in more than his art.
Successful and well-liked, Dr. Noah Praetorius becomes the victim of a witchhunt at the hands of Professor Elwell, who disdains Praetorius's unorthodox medical views and also questions his relationship with the mysterious, ever-present Mr. Shunderson.
The Winfield family moves into a new house in a small town in Indiana. Tomboy Marjorie Winfield begins a romance with William Sherman who lives across the street. Marjorie has to learn how to dance and act like a proper young lady. Unfortunately William Sherman has unconventional ideas for the time. His ideas include not believing in marriage or money, which causes friction with Marjorie's father, who is the local bank vice president
Mirian Wilkins, the teenage daughter of Senator Wilkins, starts a Society for the Rehabilitation of Criminals and, without the approval or knowledge of her father, elects him to the position of honorary president. When the family's new gardener, Baxter, turns out to be a notorious ex-convict who was sentenced to prison by Senator Wilkins when he was a judge, Wilkins considers firing him until his daughter points out that would be an unwise decision considering the position her father held on society.
Agatha has fond memories of her romance with college president Dr. James Merrill, when she was a student and he was her professor, and wants to see if there is still a spark between them.
Blake Washburn blames manufacturer MacFarland for his defeat in the race for re-election to the state legislature. He takes over his uncle's newspaper to take on big business as an enemy of the people. Miss Martin works in the "Herald" newspaper office. When tragedy strikes, Blake must re-examine his views.
Pandora Reynolds is a woman who has never fallen in love – but one who men kill and die for. When she meets dashing and mysterious ship's captain Hendrik van der Zee, he pushes her to commit the ultimate act of love.
College prof Peter Boyd tries to salvage his professional and personal reputation by using a lab chimp to prove that environment trumps heredity in behavioral development.
Newly married Kay Dunstan announces that she and her husband are having a baby, leaving her father to come to grips with the fact that he will soon be a granddad.