Sophie has a dream of meeting her father. Since her wedding is right around the corner, she decides to try and find him. She stumbles upon her mother's old diary and finds 3 possible men that could be her father. She decides to invite all of them to her wedding.
Sophie and Donna both invited their 2 best friends. Donna's friends arrive on a boat and meet her at the dock where they are so happy to see each other. At the same time, Sophie's friends arrive and they do their famous handshake to celebrate their reunion.
The next day Sophie tells her friends that she was invited her dads to the wedding and that she plans to choose one of them to walk her down the aisle. Also, she tells them that they are arriving that day but they are arriving that day but they've got to keep Donna out of the way. As the 3 men arrive on the island Donna spots them and has a panic so she asks them to leave.
Sophie sees the three men leaving but stops them before they go and persuades them to stay for her wedding. Sophie's wedding is in a few days and everything is starting come together. Sky, Sophie's husband to be, found out about her possible fathers and they have an argument about it. The tension is so high.
Meanwhile, the three men have all asked Sophie if they can walk her down the aisle and she nervously said yes to every one. She is confused and anxious, still not knowing who will walk her down the aisle. Later that day, Sophie has her hen night with all her friends and family, but its invaded by sky and his stag do.
The wedding day has come and the island is being set up and prepared for the big day. Sophie is upset and asks her mum to help her get ready, they bond over old photos and set off on the journey to the church. Donna is late for the wedding leaving everyone everyone waiting for her.When she finally gets there she walks Sophie down the aisle and the ceremony takes place.