Despite Sam Mackenzie's deep-rooted belief that marriage can turn two loving people into monsters, his all-encompassing love for Emma Jordan spurs him to propose before leaving the country bound for Valselo, the Adriatic village where millions believe the Mother of God speaks to three visionaries.
Despite Emma's love for Sam, she is unable to envision a life in a remote town on a distant continent. Emma refuses his proposal and spends the next three years making a life without Sam. When she's left at the altar, a loving conspiracy between her parents and parish priest Sam's uncle brings Emma to Valselo and an inevitable reunion with Sam. God seems to be orchestrating a second chance, but both believe they have had good reasons to turn away from God's guidance. Will they listen to Our Lady's messages which call humanity to open their hearts to God's mercy and love? Or will they lose each other a second and final time?