Abi returns to Walford from Costa Rica, full of tanned innocence, and tries to find out what happened while she was away - but no one seems willing to tell her, for obvious reasons. Kat offers Shirley some advice after discovering her in a drunk and dishevelled state, Patrick encourages Jay to remember his father, and Masood and Zainab get a surprise visit from AJ. Meanwhile, Sharon struggles to keep a secret from Dennis.