Longing to discover the identity of her true father before she exchanges her wedding vows, the daughter of a once-rebellious single mother secretly invites a trio of paternal candidates to her upcoming wedding in this feature adaptation of the beloved ABBA stage musical. Independent-minded single mother Donna has always done her best to raise her spirited daughter, Sophie, while running a successful hotel on a small Greek island, but now the time has come for her to finally let go. In just a few days, Sophie will be married, and Donna will stand by bittersweetly as her little girl takes flight. Donna's lifelong friends Rosie and Tanya will both be present at the wedding ... and Sophie has furtively invited three very special guests of her own. When Sophie walks down the aisle on that fateful day, she wants her father to give her away. The only problem is that Donna has never revealed the true identity of Sophie's father, leaving the resourceful future bride to narrow the list down to three potential candidates. Now, as three key figures from Donna's past return to the picturesque Mediterranean shores they all walked 20 years prior, one beautiful bride will discover the secret of her past while one lonely mother finds out that it's never too late for a little romance.