Cheeky septuagenarian matchmakers, the "Shippers" are on a mission to secure a dreamy Mr. Right for Abby O'Brien, a sunny, optimistic childcare worker for Monarch Cruises. She loves her job looking after the children of vacationing parents, but harbors one unfulfilled desire: to be a wife and a mother.

With his shy five-year-old daughter in tow, divorced elitist lawyer Spencer Randolph Masterson has anything but romance in mind. His goal on the MS Buckingham is to persuade his mother, Daisy, to leave her ridiculous cruise ship lifestyle and return to New Orleans. But Daisy isn't interested in life on land. Besides, she and her matchmaking posse have a marriage to arrange.

When a secret from Daisy's past surfaces and threats of blackmail start flying, the Shippers must protect their own while attempting to convince Spencer's scarred heart to weigh anchor and boldly set sail for a future with Abby.