The adventures begin as Ava and Donnie descend on Albert Square after their bus crashes outside Walford. They soon bump into Faith, who has been kicked out by her grandmother Grace, and start searching for a place to hide.
E20 launches online on Tuesday, but show bosses have now released a trailer showing some of the action ahead in the new series.
> EastEnders unveils new E20 cast members
> EastEnders: E20: Guide to the new characters
> Read more EastEnders: E20 spoilers and news
Watch the new EastEnders: E20 trailer below: