Chrissy and Jo throw a farewell party for their flatmate Eleanor, who's getting engaged and moving out. The next morning, they find student chef Robin asleep in their bath. They're looking for a new flatmate and he's looking for somewhere to live, so the girls ask him to stay, but will their landlords, George and Mildred Roper, agree to the new arrangement?

Chrissy's mother is about to pay a visit. She doesn't know Robin is living in the flat, so he's told to make himself scarce, but as she's staying the night, where will he sleep ?

Jo's new boyfriend is coming to the flat for a meal. Robin is persuaded to cook, then leave with Chrissy to spend the evening playing monopoly with the Ropers. They learn that Jo's boyfriend is Jewish - and Robin has cooked roast pork for their meal!

Chrissy is very nervous when Jo goes away for the weekend and leaves her alone in the flat with Robin. He brings a woman back, but Chrissy becomes jealous...

The rent is due and the money put aside to pay it has disappeared from the flat. Robin, Chrissy and Jo have to find a way of getting some cash quickly.

Robin has been picked to play in a college football match. A few days before the game, he goes down with a bad cold. Chrissy and Jo rally round in an attempt to help him to recover in time to play.

Robin acquires a puppy. The lease on the flat says 'no pets', so Roper mustn't find out.

Robin, Chrissy and Jo take advantage of the Ropers being away by having a party!

Robin loses his self-esteem after being unable to defend himself to a mean Irishman at the pub. Chrissy and Jo try to make him feel better, but he decides he will take on the guy the next time he sees him...

Chrissy goes on a date with her new boyfriend. Robin, however, learns that he is married, and tries to stop the date before it becomes a total disaster.

Mr Roper has had a grudge against Germans since the war. Chrissy makes the mistake of inviting him over for a meal with Robin and his German friend, Franz.

Jo is going on a date with Philip, but has forgotten that she is meant to be babysitting. Chrissy agrees to take her place and persuades Robin to come along, but when they arrive, it looks as if he is going to regret his decision as the TV is being repaired and the drinks cabinet is locked.

Robin has failed his cooking exams! It seems he might have to move back to Southampton to work for his father. Larry prepares to move in, as Robin prepares to move out!

Larry drives everyone crazy while living in the flat. Robin, Chrissy and Jo try to find him a place to stay, but where to look ?

Chrissy is upset when Robin begins a relationship with an old friend of hers.

Robin doesn't fit in at Chrissy and Jo's work party.

A mouse invades Chrissy and Jo's bedroom and Robin uses this to his advantage!

Chrissy receives flowers and chocolates from a secret admirer. She gives them to Mildred, who uses them to make George jealous, assuming that Mildred has a secret admirer.

Mildred leaves for the weekend. George takes advantage of this by trying to trick Robin, Chrissy and Jo into leaving the flat.

Chrissy replaces Robin in a poker game while he is away getting his tonsils removed. All she has to do now is learn how to play the game!

Larry decides to use Chrissy's cine camera and projector for a 'special' type of film...

George has a hard time getting the piano he sold to Robin upstairs.

Robin gets a job as a door-to-door encyclopedia salesman, and needs some help.

While the flatmates compete to get the flat to themselves to entertain friends, George is trying to find jobs to avoid Mildred.

Robin, Chrissy, and Jo are cleaning the Ropers' garden. They discover a plant and decide to keep it, that is until Larry identifies it as cannabis...