Romilly Shepard spent her childhood with abusive parents, and as a college student, she finds comfort in the hard facts of science. She lives with her friend Martha, also an atheist, and they see each other as like-minded rationalists who stand elbow-to-elbow against a hopelessly irrational world. Intent on debunking, Romilly and Martha sign up for a comparative religion class, but the instructor, a graduate student and preacher named Ernest, challenges Romilly's assumptions. His open-mindedness and tolerance broaden Romilly's mind and win her heart.

Martha feels betrayed by Romilly's love for a preacher, and Ernest's congregation thinks Romilly is a heathen in need of salvation. Friction mounts between Romilly and Ernest, and she fears she's nothing more than his Convert-an-Atheist Project. But when a chronic disease threatens Ernest's life, labels given by other people no longer seem so important. Romilly takes a crash course in faith and hope - faith in Ernest's love, hope for his healing. In doing so, she learns to embrace their differences and not fear them, but has her awakening come too late?

Sarah Harrison is a housewife and the mother of two grown children but her marriage is tainted by alcoholism and emotional abuse. When her husband Ed drowns in a river at an RV park in Tennessee, she's on her own for the first time in her life. She can't drive the Winnebago to return to their home in North Carolina.

Max McCloud, newly retired from NASA, is parked next to Ed and Sarah's Winnebago. He designs aircraft components online with his friends and misses his late wife, Adela, who died the previous year. He befriends the newly widowed Sarah and offers to drive her home in her Winnebago.

Can their new friendship and potential romantic attachment overcome the memories of their deceased spouses and provide them with the kind of Golden Years they both desire?

As a young woman, Laurel misinterpreted a psychic vision, causing the death of her first and only love. She has lived with guilt ever since. Two decades later, struggling to free herself from a toxic marriage, she's pulled to an alternate reality where her beloved still lives. There, she's the dead one, and he and their children are grieving for her. When she tries to contact them, they think she's a ghost or a product of their wishful thinking.

She desperately wants to remain in her family's reality and connect with them. By enjoying a long, happy life with the man she loves, she can rectify her mistake and free herself from her guilt. But she's running out of time. Every shift between realities damages her body further. And her soon-to-be-ex will stop at nothing to shackle her to a life she despises.