New pictures have been released previewing one-off mini-episode 'Dorothy Branning: The Next Chapter', which sees Abi track down Dot following their family's dramatic Christmas.
Dot decided to take time out from Walford earlier this year as she was deeply affected by Heather Trott's murder. In real life, actress June Brown took a break from the soap to work on her autobiography and other projects.
Teasing the Red Button episode, a show statement said: "Why has Dot stayed away from Walford for so long? Why won't she come home? We're about to find out when Abi Branning leaves the East End on a mission to seek out her Grandma Dot…"
EastEnders airs the special on Friday, January 11 before Dot returns to the main show the following Monday (January 14).