The new night manager lays down the law, locking everyone into the hotel. Meanwhile, Kat and Renbe's quest takes them to an abandoned duplicate of the town.

Unable to trust Joe, Janet sets her sights on Ulrich as her ticket out of town. Morse and Blackam begin to take ease with Ulrich due to his nice personality and helpfulness, but soon realize his true intentions. Meanwhile, Kat and Renbe have returned to San Francisco, only to find out that their lives in America have been severely changed by "The Program".

Blake wants to operate on Lola to prove the healing power of laughter; Glenn gets revenge on Cat's new beau; and Chief undergoes surgery.

Nina vows to take charge of her love life, but as things with Brendan come to an end, Chris struggles to explain his past and Nina is left uncertain about their relationship. The Proudman family adjust to life with their newest member, Baby Ray.

Kate and Jack are called in to investigate following the attempted murder of a high-flying banker while staying at a private clinic. Jack becomes preoccupied with Kate's relationship, as she tries to hide the fact that she has been having marriage counselling sessions.