Five years after meeting her three fathers, Sophie Sheridan prepares to open her mother’s hotel. In 1979, young Donna Sheridan meets the men who each could be Sophie’s biological father.

A spirited young bride-to-be living with her single mother on a small Greek island secretly invites three of her mother's ex-boyfriends in hope of finding her biological father to walk her down ...

When a fisherman leaves to fight with the Greek army during World War II, his fiancée falls in love with the local Italian commander.