Susan Spence previews the week ahead in Coronation Street, Emmerdale and Eastenders. In Corrie, two people die in Tony's quest for revenge and Gail's trial falls apart. Natasha and Declan start a secret affair and David's greed gets the better of him in Emmerdale. While in Eastenders, the Walford gang head off on a trip which leaves Lucy cast out and Lucas has another victim in his sights...