Having persuaded Sam - unaware of her new name - to leave her alone, Cath has a problem when she is required to produce her passport for proof of identity, causing her to panic and ask for colleague Charlie's help in an operation. Romance with Andy is a compensation but there is a further obstacle when, returning to Sheffield to visit her elderly father, she learns of Karl's intention to follow her and Molly to Edinburgh. Eventually she manages to procure a fake passport but a meeting with an old friend who knew the real Alison alerts Andy to his lover's deception.
—don @ minifie-1