Inside burning buildings, Captain Caleb Holt lives by the firefighter's adage: Never leave your partner. Yet at home, in the cooling embers of his marriage, he lives by his own rules. Growing up, his wife Catherine always dreamed of marrying a brave and loving firefighter - a man just like her father. Now, after seven years of marriage, she wonders how it all went so wrong. Countless arguments and anger have moved the couple in the direction of divorce. But as they prepare to end their marriage, Caleb's father challenges him to commit to a 40-day experiment he calls "The Love Dare." Caleb agrees, for his father's sake more than for his marriage. Surprised by what he discovers about the meaning of love, Caleb realizes that his wife and marriage are worth fighting for. Now the courageous firefighter will face the challenge of his life - rescuing his marriage.