The trailer focuses heavily on flashback scenes, as viewers get a sense of Donna Sheridan’s early years. Lily James plays the younger version of Meryl Streep’s Donna, with Alexa Davies and Broadway alum Jessica Keenan Wynn (Beautiful, Heathers) playing Young Rosie and Tanya (first played on screen by Julie Walters and Christine Baranski, respectively). Donna seems to be just as exuberant and free-spirited in her youth, even then bringing fashion to a pair of overalls.

However, the trailer heavily implies that in the more present-day storyline, Donna is now absent, with her exact fate unknown. Most footage of Streep comes from the original film, and many characters refer to her in the past tense. As her daughter Sophie (Amanda Seyfried) is about to welcome a child of her own, her mother’s friends return to the Greek island to be with her.

The trailer ends with a surprise visit—via helicopter—from none other than Cher’s Ruby Sheridan: Donna’s mother, Sophie’s grandmother, and instantly iconic party crasher.

The cast also includes Colin Firth, Pierce Brosnan, and Stellan Skarsgård (reprising their roles as Sophie’s prospective fathers Harry, Sam, and Bill), as well as Dominic Cooper as Sky and Andy Garcia as Fernando (which also happens to be the name of a popular ABBA tune not heard in the original musical or first movie).

Ol Parker both wrote and directed the sequel, which recently wrapped filming.