The sun truly never sets on the Greek island of Kalokairi, and Mamma Mia! Forever invites audiences back for what promises to be the ultimate, shimmering musical celebration—a joyful bridge connecting the past, present, and future of the beloved ‘Dynamos’ family.
A Resort, A Son, and A Grandmother’s Grand Plan
Five years have passed since the grand reopening of the Hotel Bella Donna, yet the idyllic setting masks a subtle chaos. Sophie (Amanda Seyfried) is struggling to find harmony in her life, juggling the demanding role of managing a world-class, bustling Mediterranean resort while single-handedly raising her energetic, seven-year-old son, Donny. The pressure mounts, reaching a fever pitch when her glamorous, unpredictable grandmother, Ruby Sheridan (Cher), arrives with an audacious, island-shaking idea: to host the inaugural “Global Dynamos Festival.” This massive, week-long event promises to invite music legends and dazzling talent from every corner of the world, turning the tranquil Kalokairi upside down.

The Return of the Dads and Donna’s Hidden Tapes
The chaos is amplified (and occasionally contained) by the enthusiastic return of Sophie’s three fathers: the romantic architect Sam Carmichael (Pierce Brosnan), the free-spirited adventurer Bill Anderson (Stellan Skarsgård), and the strait-laced banker Harry Bright (Colin Firth). They have returned to offer their “assistance,” which inevitably leads to accidental havoc, particularly when they unleash their synchronized, yet wonderfully terrible, “dad dancing” on the unsuspecting festival crew.
Amidst the preparations, Sophie stumbles upon a hidden, beautifully aged box tucked away in the attic—a collection of cassette tapes recorded by her mother, the legendary Donna Sheridan (Meryl Streep). These tapes are no ordinary recordings; they are heartfelt, intimate audio journals documenting Donna’s greatest joys, regrets, and lessons learned.

The Magic of the Music
As Sophie navigates her toughest managerial and maternal challenges, these tapes trigger a truly magical, moving journey. The spirit, wisdom, and powerful voice of Donna guide Sophie through her moments of doubt, offering silent reassurance and prompting dazzling flashbacks that illuminate the enduring strength of female bonds.

The film is set to feature a spectacular soundtrack, including several never-before-released ABBA classics, seamlessly woven into the narrative alongside high-energy, dazzling dance numbers choreographed across the stunning island landscapes. The story hurtles toward the opening night of the festival, culminating in a tear-jerking, joyous reunion performance—a crescendo of music and family that definitively proves that love, in all its forms, is the loudest, most enduring song of all.