WATCH: It's a new chapter for Once Upon a Time

Cape Town – There's a big change coming to Storybrooke.

ABC released the first trailer for Once Upon a Time season 7.

After a number of key cast members left the show it has undergone a reboot of some sorts. 

The clip begins almost identical to season one with a now adult version of Henry (Andrew J. West) opening the door to find his daughter Lucy (Alison Fernandez) armed with a fairytale book telling him his family needs him. 

What follows is a sneak peek of what's to come introducing new characters: Cinderella (Dania Ramirez), Cinderella’s evil stepmom Lady Tremanie (Gabrielle Anwar), Cinderella's stepsister Drizella (Adelaide Kane), Tiana (Mekia Cox) and Alice from Alice in Wonderland (Rose Reynolds). 

Returning cast include: Regina (Lana Parrilla), Hook (Colin O’Donoghue), and Rumple (Robert Carlyle).

Jennifer Morrison will reprise her role as Emma Swan for one episode and Emilie de Ravin will also be back as Belle for a Rumple storyline. 

Watch the trailer here:

The series will premiere in the US in October.