Inside burning buildings, Captain Caleb Holt lives by the firefighter's adage: NEVER LEAVE YORU PARTNER. Yet at home, in the cooling embers of his marriage, he lives by his own rules. After seven years of marriage, countless arguments and anger, Caleb and his wife prepare for divorce. As they prepare, Caleb's father challenges his son to commit to a 40-day experiment "The Love Dare." Caleb agrees for his father's sake. Surprised by what he discovers about the meaning of love, Caleb realizes that his wife and marriage are worth fighting for. He is ready to face his toughest job ever---rescuing his wife's heart.