Father Michael McKinnon goes from the UK to Boston circa 1935. For unknown reasons, he avoids at all costs the most prominent parishioners, Arthur and Eleanor Barret. Meanwhile Eleanor and Arthur desperately want to have a child, but Arthur is sterile, so they hire Harvard law student Roger Martin to impregnate Eleanor, but unfortunately Roger falls in love with her.
Nora, a single mother raising two teenage daughters, Shade and Trudi, waits tables at a truck-stop diner in a small New Mexico town. The beautiful and rebellious Trudi drops out of school and gets a job alongside Nora, while the younger Shade whittles away her time at Spanish movie matinees. Their lives are turned upside down when Trudi becomes pregnant and the girls' absent father returns.
Sharon Blake is a successful career woman who has a passionate affair with a possessive man. When she tries to break off the relationship, she uncovers the dark side of her former lover, who starts stalking and harassing her.
Hank Marshall is a tough, square-jawed, straitlaced Army engineer and nuclear science expert, assigned to help conduct weapons testing in 1950s America. Hank has become a thorn in the side of the Army, though, for a couple of very different reasons. He is an outspoken opponent of atmospheric testing, though his superiors hold contrary views and want to squelch his concerns...and his reports. The other problem is his wife, Carly. She is voluptuous and volatile, wreaking havoc in his personal life and stirring up intrigue at each new Army base.