Connie Finnegan and Samuel Sheppard are both single parents. Connie has 13 children from her first marriage. Samuel has 10. When they announce their engagement, Hilarity Ensues. The book is a first-person novel that regularly switches narrators, between Scooter Finnegan and Rory Sheppard. It documents the family after the marriage, as everyone adjusts to moving to a new city with new siblings. And then some of the main characters get into a car accident, leading to Scooter being in a coma.