EastEnders - Martin Fowler discovers that he is not Arthur's biological dad.

Stacey is offered a place on a mother and baby unit. However, just before she leaves the hospital, she ponders over a letter she has written to Martin, in which she states that the family would be better off without her.

After some supportive words from her doctor, Stacey decides not to post the letter after all, but the decision is soon taken out of her hands when a nurse gives it to Martin anyway.

Back at home, Martin gets the shock of his life when he reads what Stacey has written - Arthur isn't his son!  

With the truth out, Martin later arrives at Stacey's hospital with Arthur, but how will he react to learning that Kush is the dad?

Airs Monday, February 22nd