Caleb Holt (KIRK CAMERON) is the captain of a fire station in Albany, Georgia where he and fellow firefighter Lt. Michael Simmons (KEN BEVEL) are trying to teach rookie Eric Harmon (JASON McLEOD) that the most important lesson is you never leave your partner behind, especially in a fire.
Yet, while Caleb holds that principle dear, he's letting his domestic partner, wife Catherine (ERIN BETHEA), slip away due to his porn habit and expecting her to do everything around the house. She's the public relations director for a local hospital, and between work and caring for her ill mother, she doesn't have much free time and doesn't appreciate what Caleb does with his. Accordingly, their marriage is on the rocks, with Michael suggesting his friend should go to counseling, but Caleb wants no part of that.
Nor is he particularly interested in the advice from his dad, John (HARRIS MALCOLM), or mom, Cheryl (PHYLLIS MALCOLM), about such matters, mainly because it comes from a Christian standpoint. Even so, and as a favor to his father, he agrees to try an experimental 40-day program known as the Love Dare. Without telling his wife what he's doing, he supposed to follow one small but significant guideline each day that will supposedly result in a saved marriage.
Beyond also having to deal with his day-to-day duties at the fire station -- including putting up with egotistic braggart Wayne Floyd (STEPHEN DERVAN) -- Caleb's quest has another obstacle. And that's Gavin Keller (PERRY REVELL), a handsome doctor who works with Catherine. He's sweet on her and the feeling has become mutual, meaning Caleb's work is cut out for him. Yet, despite setbacks and self-doubts, he perseveres, and once he accepts the love of Jesus, things start to go his way.