Two old-time robbers return to the UK after years of living it up on the Costa del Sol, but sticking to the straight and narrow may be difficult for them.

A policeman from Maurice and Syd's past rents the flat below them and decides to blackmail them into doing a job for him.

Maurice is rattled when Barbara befriends a local aristocrat; when her bracelet is stolen, Maurice is convinced he knows the culprit and will stop at nothing to prove he's right.

Maurice becomes obsessed when the one safe he failed to crack comes back into his life; despite Syd and Hedley's warnings that the safe is cursed, Maurice is adamant he can finally beat it; Grace becomes suspicious of her father's behaviour.

Young Nick's dad is in trouble and the boys promise to help, but, when Hedley discovers he's going to be a father he starts to question his role in the gang -- with devastating consequences.

Maurice vows to lower his stress levels after a nasty shock at the doctor.