It took losing his sight to find his way home. When his world goes dark, she's there to help... Widower and single dad Dr. Zac Calhoun thinks he can handle anything life throws at him...until an incident at his mission leaves him blind and reeling. But when nurse Abby Armstrong steps in to help Zac and his twin girls at the family's ranch, he feels less lost and alone. With Abby by his side, can Zac find hope again?