Growing up, Caleb Holt's wife, Catherine, always dreamed of marrying a loving, brave firefighter...just like her father. Now, after seven years of marriage, she wonders when she stopped being "good enough" for Caleb. Countless arguments and anger have them wanting to move on to something new, something easier, something with more sparks. As Caleb and Catherine face inevitable divorce, Caleb's father challenges Caleb to commit to a 40-day experiment: "The Love Dare". Wondering if his failing marriage is even worth the effort, Caleb reluctantly agrees, not realizing how these forty days will change his world forever. 

Surprised by what he discovers about the meaning of love, Caleb begins to see his wife and marriage as worth fighting for. But is it too late? His job is to rescue others. Now Captain Holt must face his toughest job ever...rescuing his wife's heart.