Ferne bowed out of the ITVBe show earlier this year to focus on other projects, but she always promised she wouldn't stay too far away.
She already made a brief cameo when Bobby Norris and Danielle Armstrong filled her in on all the Gran Canaria gossip via FaceTime in the first episode, but fans will get a welcome treat on Sunday when she films a scene with Danielle.
Ferne will be seen enjoying a spot of afternoon tea with Danielle and her mum, but it looks like drama is around the corner, as another rumour about Lockie and Courtney is set to become the talk of Essex.
Ferne decided to step away from TOWIE after coming in third place on I'm A Celebrity... Get Me Out Of Here!
Announcing her exit in February, she said: "I have been super busy since I've been back from Australia, which means you won't be seeing as much of [me] on The Only Way Is Essex. However, if any of my friends ever need me or need my advice I will make sure I am back to Essex to help them."
TOWIE airs Sunday at 10pm on ITVBe.
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