Elsie forms a plan to squeeze her repair costs out of Wormold. The Barlows are ostracised due to David's alleged bribe. Ena hints to Minnie about her inheritance.

Elsie is in a bad mood about Ena and takes it out on Dennis. Elsie knows that Ena will have something up her sleeve and determines to get in first. She's thrown when Ena is friendly to her and disarms her. Elsie nevertheless gives her a list of repairs she wants doing to No.11. Hilda is furious when Stan fills the house with paper. Albert gets the name of a paper merchant that Stan can do business with.

Jack tells Albert, Stan and Charlie about Ena's mysterious intervention. Mrs Ainsworth calls at 15 Mawdsley Street. She lets rip at Len about his supposed disgusting history of boozing and womanising. Len is mystified at what she means and matters aren't helped when Irma turns up, flaunting herself at him to win her bet with Dennis.

Swindley puts the prizes in the lucky dip barrel in the middle of the shop with a gents' watch being the star prize. Ena takes Minnie to task for failing to spot Norma Gee moving in with Len. Norma is pleased with her room and says she'll make no demands on Len. Annie is pleased that Len turned down April.

Dennis worries about the rent rise but Elsie cites an identical situation where Dot Greenhalgh's sister-in-law won her case in court. Ena tries to find out from Stuart what the committee's decision is likely to be but he's unable to assist. She sends Minnie out to find out what the Bold Street Mission's attendances are like. Len continues to enjoy Norma's food.

Ena wonders if there's been any sign of activity from the Tanners. Dennis tells Elsie about the notice. Elsie is calm, deciding not to row with Ena but to get everyone on their side. The clasp on Annie's gold bracelet is broken. Elsie starts her campaign with Annie, telling her "in confidence" that Ena is evicting them in four weeks. Annie immediately starts to spread the news, opining that the Tanners are being victimised.

Stan gets up early in the morning to speak with milkman Bert Lodge about the possibility of jobs with his firm. Elsie and Dennis create homemade damp patches and other household problems, hoping to give Ena the impression that No.11 has been falling to pieces for years. Ena sees through it all and tells Minnie she intends to get the Tanners out of the house. The residents anticipate yet another clash between the two. In the Rovers, Ena gives Elsie her notice in writing. Elsie goes for Ena in the snug and the fight spills out into the Street. The residents take sides. Ena tells Elsie she wouldn't be throwing her out if Swindley wasn't throwing her out.

Len takes Val to hospital in his van. Ken feels completely useless. Jerry worries about his future. Len gets a contract from Arnold Jenkinson to do a conversion job for one of his supermarkets. Ken discovers that if the twins are born before midnight he'll get tax relief on them. Willie Piggott is fined £150 for bribing Ken. Val gives birth to a girl and a boy. The Walkers break open the champagne for the residents to celebrate the birth of the first-ever set of twins on the Street.

Emily leads the trip to the Blue John Mines with Dennis, Sandra, Irma, David, Hilda, Stan, Charlie, Minnie, Albert, Elsie, Len, Jack and Annie in attendance. Arthur Walker looks after the pub. The residents view the mines, 850 feet below ground level. Irma grows frightened of scaring David off. Dennis escorts Sandra. Lucille sees Harry off at Liverpool. On the coach back, David presents Irma with an engagement ring from the cavern. She accepts it.

Ted's daughter writes to Albert asking him not to interfere. Lucille gets four 'O' Levels - Science, English, French and Geography. Ted is hurt by his daughter's indifference to him. The residents are shocked and shaken when No.7 collapses.

The residents fear the rest of the Street will fall down. The Barlows seek refuge for Peter and Susan in the Rovers as everyone moves out of their homes. The police rope the house off and Mr. Wormold arrives. Annie worries when Lucille doesn't return after a night out with friends. The menfolk start to shift the rubble in case Lucille is under it. She arrives home safe. The Surveyor detects no subsidence. The collapse was caused by a faulty beam over the bay window. Len is given the contract to secure the house. Ted decides to go back to the home and leaves. Lucille cries over No.7. Wormold feels it isn't worth the £300 repairs and tells Len to pull it down.

Emily worked until 2.00am getting the fashion show ready. The residents gather at the Mission Hall to watch the event. Irma, Sandra and Lucille model the garments and get mixed up back stage. Allan drops woodwork when he discovers girls. The show turns into a fiasco. Elsie is horrified to discover Dennis has bought 108 Christmas trees.

The nappies which Val put out to dry start to smoulder, filling the house with smoke. Val returns home and manages to put out the fire. Val’s furious with Ken but Annie tells her not to be too hard on him. Sandra lets Dennis store boxes of crackers in the Gamma Garments' storeroom after hours. Emily is cross with her when she finds out. Val breaks down at the thought of what could have happened to Peter and Susan. The Christmas trees are delivered, filling No. 11.

Irma and David go to get married. Jack gets Arthur Walker to look after the Rovers, as the residents leave, on mass, for the reception. David and Irma are married at Ridgeway Street Registry Office. Jack, Annie, Stan, Hilda, Len, Elsie, Ena and Minnie hide behind a screen at the reception and surprise the Barlows. Arthur leaves Lucille alone in the Rovers whilst he places a bet. Val is chatted up by a man called Frank Turner in the Street. He steals cigarettes from the shop, and gets Lucille to serve him at the Rovers. He makes her feel uncomfortable. Stan makes a speech at the reception. Turner tells Jack that Lucille shouldn't be serving behind the bar at sixteen and makes him see that he's going to blackmailed.

David hopes to continue as social officer for Weatherfield Athletic. Lionel cuts down on giving credit at the shop. Minnie is intrigued by Ena's mystery parcel delivery.