Hotel Babylon is closing. Tony desperately pitches the hotel to an Asian businessman, but the deal goes into freefall when Tony refuses to meet his demands. Meanwhile, a terror alert throws Central London into chaos, and a crowd seek refuge in the hotel. The team pull together fantastically, and a millionaire caught up in the bedlam is so impressed that he decides to buy Babylon, securing its future. Elsewhere, Anna is nearly eight months pregnant, but is in total denial.

A couple who are both celebrities hold their joint 40th birthday party at the hotel. Anna finds out that they are not as happy as they seem together. Sam ignores Juliet's advise and better judgment when he lets lets two rival boxers stay at the hotel.

The staff take part in a treasure hunt around the hotel searching for valuable emeralds claimed to be hidden there. Gino finds himself being conned by a man staying at the hotel. Tony discovers that a former film star staying at the hotel isn't quite as she seems.

When Emily's estranged father turns up at Babylon, she wants him to leave, but he has something he needs to tell her first. Meanwhile, Sam gambles Hotel Babylon and loses, and Tony meets his doppelganger and they put their uncanny resemblance to good use.

The staff are sent on a team-building course by Sam to improve their performance. Sam's plan doesn't go as he hoped when Juliet is forced to resign. A guest at the hotel makes eyes at Gino. Valuables go missing from the hotel after Juliet and Ben attempt to help a homeless man.

The hotel has managed to secure an exclusive magazine deal to host a Royal wedding with an Italian magazine called Certo!. Juliet is surprised when Sam plans to press ahead after the wedding is canceled using the hotel's staff as the wedding party. When Juliet finds out that Sam needs the money from the deal to pay a tax bill she decides to help him. Gennaro Fazio, the magazines editor exposes what they are to though.

James and Gino are are asked to organise the extravagant funeral of a VIP guest . If the event is a success Juliet tells James that he will gain a promotion at the hotel. An old boyfriend of Juliet's checks into the hotel and wants to give their relationship another go. Sam becomes jealous and ends up having a one night stand with one of the hotel's guests.

Sam and Juliet's love grows, but a hidden secret threatens their relationship. Tony hosts a party for other concierges while Gino tries to find the identity of the writer of an erotic novel among the staff. Also, Mel's lie starts to crumble.

Jack and Emily are caught up in a hostage situation when a bereaved father who has brought his son's ashes to the hotel, clashes with a faith healer. Ned makes a proposal to Anna, but their celebrations are cut short when she goes to investigate the sound of a gunshot from an adjoining room.

A TV chat show host brings a prostitute to the hotel, causing Tony's father-instinct to kick in when he discovers she's just 15. Anna and Ben compete to attract the attentions of a famous illusionist, and with the restaurant now a roaring success, James has to hire more staff - which puts Gino's nose out of joint. Guest starring Steven Pinder and David Schneider

A movie is shot on location at the hotel, but the stars don't get on and it is Jack's job to keep both of them happy. Gino and Ben compete for the attentions of the director in a bid to be `noticed', and Anna is preoccupied by thoughts of Charlie which do not go away even when Ned invites her to accompany him on a trip to New York.

Charlie is back after the gun incident, and Hotel Babylon has more press coverage than ever. A member of parliament's wife is staying at the hotel after her husband has been cheating on her, and with the story all over the newspapers Rebecca helps her to take revenge. But something is not quite right...Other staff are busy helping a couple who have checked in separately, not knowing that their rooms are next to each other. Meanwhile, the staff are having a war against a rival hotel.

An old workmate of Anna's is holding a smart charity ball at the Hotel, and some of the staff are out of uniform. One guest, Lady Stanwood, is known to all, as she is a former chambermaid at the hotel. But Anna is not going to be upstaged. Meanwhile, an old school friend of Ben's checks in. In the kitchen, European co-operation is the order of the day.

Charlie rushes to help Robert Kane, a heart-broken business man who threatens to kill himself by jumping off the hotel's balcony.Meanwhile, Rebecca's divorce is at last finalized, and she throws a party to celebrate. But some shocking news leaves everyone reeling.

Tony is surprised when his 13-year-old daughter arrives for a West End audition, but a crisis stops him giving her the attention she craves. Charlie sets the socially inept final deputy manager candidate a challenge, and Gino's brother pays him a visit, but when the sibling wins over the staff and even makes better cocktails, jealousy sets in.

Tony is left seething when he loses out on a prestigious award. He decides to modernise his skills, only to find himself embroiled with a gang of Russian drug dealers.Meanwhile, Rebecca improves staff morale by reinstating a Christmas party, and things hot up as she and Charlie prepare it. Then Anna sees her chance to make a lot of money out of a British actor and renowned sex addict who is staying at the hotel.

The team have just a day to recover from a terrible restaurant review with a Valentine's Day relaunch using a celebrity chef. Charlie struggles to contain his jealousy over Anna's interest in the rich, upper-class hotel guest Giles, and an excited Gino is convinced that a porn film is being shot in one of the rooms, but Tony worries about the business's reputation

The team have one day to organise a society wedding, but when it emerges the bride's family are bankrupt Charlie is faced with a stark choice. Temptation threatens to get the better of Ben putting him at the mercy of mercurial celebrity chef Otto, and James gets a shock from his past in the shape of a weight-loss guru.

Natasha, the student daughter of a Russian billionaire, wants to get married in a hurry, so that she can stay in the UK. Charlie and Tony find her a man and set it all up for her - though they don't dare to tell Rebecca what is going on. And what will Natasha's tycoon father make of it all when he arrives - will he foot the hotel's inflated bill for the reception?

Immigration officers visit the hotel, which depends on migrant labour. This puts Jackie in a difficult position, as her own visa is months overdue, and Charlie hints that she should marry him.Meanwhile, Rebecca's marriage is back on the rails, Gino is pretending to be gay, and Charlie helps a guest to cover up her affair at the hotel.

Rebecca Mitchell, general manager of Hotel Babylon, interviews the hotel's ambitious head receptionist, Charlie Edwards, and outsider Anna Thornton-Wilton for the job of deputy manager. As he is already on the spot, Charlie has the chance to prove himself by extracting as much money as possible from a world-famous rock band. Meanwhile, Rebecca seems to be avoiding going home at night.In the end, Charlie gets the job, and Anna is the new head receptionist.

A jingle writer called Machin checks in to the hotel. During his last stay, he tried to kill himself, so tension is high and Rebecca gives Charlie the job of keeping Mr Machin alive.The hotel's concierge, Tony, makes a disastrous mistake when he mistakes a woman guest for a prostitute.Meanwhile, the staff help a former employee celebrate her golden wedding in style.

Anna sets her cap at a rich American business man. How far will she go to get his attention? Meanwhile, Charlie is upset when Jackie tells him she is dating someone else. But he is soon being given the glad eye by Alice, an attractive hotel guest.

Adrian Tintagel, the leader of a strange cult, checks in. Then Anna discovers Tintagel's doomsday mission and finds herself in danger. Meanwhile, a Premiership football team is staying at Hotel Babylon. While their nefarious requests do not bother Tony, their appalling behaviour towards the hotel staff tips him over the edge.

Charlie feels the pressure of management when he receives a letter from head office criticising his accounting and the chambermaids threaten to go on strike over unpaid wages. The arrival of an old friend visiting a jewellery auction hosted at the hotel perks him up, but a further financial crisis leads him to seek help from an unsuitable source and brings danger to everyone in the building.