"Roads Not Taken" is a dramatic novel that explores the complexities of human relationships, the dangers of journalism, and the lasting effects of the choices we make, set against significant 20th-century historical events. The main aspects of the story take place in various global locations, including Selma, Alabama, Prague, and Toronto, spanning from the 1960s to the late 20th century.

The novel begins with journalists Peggy Mortimer and Alistair Parker covering the violent Civil Rights march in Selma, Alabama, in 1965. Their professional relationship is tested by the constant danger they face, leading to conflicts over the risks they take. Alistair's cautious nature, shaped by his childhood experiences, influences his approach to journalism and his interactions with Peggy. The story also introduces Virginia Sloan, whose life intersects with Alistair's during a Model United Nations event, marking the beginning of a significant relationship.

As the story progresses, Alistair and Peggy's bond deepens through their shared experiences covering major global events, including: - The Six-Day War - The Vietnam War - The Soviet invasion of Czechoslovakia Their relationship faces challenges due to their differing views on the risks involved in their work and the personal sacrifices they make. Alistair's cautious nature and Peggy's determination to report the truth create tension, but they continue to support each other professionally and personally.

The novel reaches its climax with Peggy's death during the Soviet invasion of Afghanistan, leaving Alistair devastated and struggling with guilt and grief. He returns to Singapore to recover and later delivers Peggy's ashes to her mother in Montreal. Alistair's subsequent travel writing career takes him to various locations, but he misses the excitement of covering major news stories. He eventually accepts a travel writing position in Paris, where he meets Marianne, a former model. Their relationship blossoms but ends when Marianne joins Médecins Sans Frontières in Ethiopia and falls in love with a French doctor.

In the resolution, Alistair, now in a long-term care home, reflects on his life and choices. He reconnects with Ginny, an old love, and they rekindle their relationship, marrying and enjoying eighteen years together. Ginny's Alzheimer's diagnosis brings challenges, but Alistair cares for her until her death. Alistair finds solace in honoring Ginny's memory and the values they shared, continuing to seek meaning and connection in his later years. The novel concludes with Alistair contemplating his journey and the impact of his choices, finding peace in the small acts of kindness and connection he shares with others.