Lyn shows Steph and Penny her love bite.
Stuart tells Dee that he loves Felicity.
Susan tells the doctor it's 1972 and she's 16.
Karl and Darcy discuss possible diagnoses on their way to Susan's bed, the most likely being retrograde amnesia, but the severity and likely duration are unknown. They then discuss whether to tell her - the shock could jolt her memory, but it could do her harm as well. Karl wants to tell her, Darcy wants to let her carry on thinking it's 1972, and gradually introduce things to her. They enter Susan's room.
Joe is watching TV Michelle and Connor are in the kitchen. Michelle is rubbing toothpaste on her neck in order do calm down the bruising from her love bite. Connor chases her with a bottle of chocolate sauce trying to make her into an after dinner mint! They run into the living room and notice Joe, at which point they attempt to make polite conversation, whilst Michelle tries to nonchalantly hold her hand to her neck. Lyn walks in. Michelle and Connor make an excuse about planning the school social and go to Michelle's room. Joe tells Lyn they've been in there all afternoon, Lyn tells him that he shouldn't let them do that, but he could have at least eavesdropped.
Susan tells Darcy that she has a nephew with the same name as him - he's three. He asks her some questions about herself and she is fairly sullen about repeating them again, until he asks about her hobbies and music tastes (a toss up between the Rolling Stones and T-Rex. Karl smiles at this.) She tells him that her friend Mary organised the party last night a surprise for her 16th - but she knew. After checking that Darcy won't tell her parents she confesses to drinking a small amount of champagne and feeling a bit funny, her head was spinning a bit as she went to bed. Darcy asks what happened next and her voice falters as she describes waking up in a strange house, and meeting the lady (Libby) who brought her here. She asks to go home again. Karl leans forward and asks if she remembers him, she says yes, he's a doctor here and he was in the park. She asks why her parents aren't there and whether they have been called.
Stuart is sat at the bar tossing a coin - Lou jokes with him that it's not about whether to buy another beer - Stuart says no, his wallet makes that decision for him. Lou tells him not to make important decisions in that way - there's a 50% chance of making the wrong choice, and to think about it more. Stuart replies that he's thought about it until his brain hurts. He keeps coming to the same decision - his life is heading nowhere and it's time for a change. Lou asks him how.
Lyn is trying to listen in but Connor and Michelle have turned the stereo up loud. Joe is reading a magazine and comments that if they are listening to music, then they can't be up to much else. Lyn despairingly points out that they are using the music to drown out what they are really doing. Lyn calls them out of the room, and then doesn't know what to says, so Joe tries to come up with a reason off the top of his head, and asks them to play Scrabble. He asks Michelle why she's got a jumper on (a polo neck to hide the love bite) and whether she got changed in front of Connor. She reassures him that her t-shirt is under the jumper. Connor at this point suggests that they play "Clarney Bluff", clearly a game he has just made up. Joe and Lyn fall for it and rush to find a pack of cards.
Stuart is walking out of the pub, and is stopped by Felicity, she wants to tell him how sorry she is for everything that's gone on, how she treated him, especially as he was the only person who gave her the time of day. He forgives her and they stare into each others eyes for a second. Flick invites him for a coffee, but he says he needs to walk the dog and leaves her.
Darcy and Karl argue more heatedly on the best course of action for Susan. Darcy throws in the question of whether this is Karl's medical opinion or not.
The Scullys and Connor are reaching the end of the game, Connor is clearly making up any rule he can to make Joe win and get him on side, after a lot of muttering about scoring he declares Joe the winner, and he and Michelle attempt to head back to Michelle's room. Joe interrupts them with a "not so fast". He tells them that they are to play another game, and he and Lyn will make up the rules, it's called 'How to behave when you're living in the Scully house". He tells them to sit and starts "Rule number one..."
Flick goes to answer a knock at the door, it's Dee who has come to talk about Stuart - and to tell Flick to stop "tugging at his leash", considering the way he feels about her. Flick tells her that Stu and she are just friends. Dee accuses her of keeping Stu waiting in the wings in case things don't work out with Marc. Flick tries to reassure Dee that Stu knows the situation, but Dee is not convinced (having been told the opposite by Stu). Dee challenges Flick by asking if Marc was out of the picture, whether Flick would still feel nothing more than friendship for Stu?
Joe, Lyn and Michelle are negotiating house rules, making deals with one rule against another. They finish and Connor and Michelle stand to leave, Michelle makes the mistake of rubbing her neck and Joe notices the bruise. He tells them they've blown the probationary period, back to the negotiating table, "Sit Down!"
Stuart and Dee are ordering dinner, Lou jokes that he needs the sustenance for all the long hikes and exercise regimes, and asks Dee to try and talk him out of it. She asks what's going on. He tells her he's thinking about joining the army, that he's 99% sure, and that it's no-one else's decision to make.
Susan, with a lot of effort manages to remove her wedding ring and put it on the cabinet. Karl and Darcy enter. She tells them she wants to go home, but Karl tells her that they need to keep her in, as she's had a blow to the head and some memory loss. She asks about her parents, and Karl, despite prompting from Darcy not to, tells her he's very sorry, but he mother and father are dead. The scene cuts to outside the hospital, indicating that some time has passed. Cut back to Susan with Darcy. Susan tells Darcy that she saw her parents last night and asks him to confirm that 'the other doctor' is lying. Darcy says no, that she's forgotten a lot of things and if they all work together she'll remember them. She asks if there was a car accident. Darcy explains that they died some time ago she starts to cry and says she doesn't understand, as Darcy goes on to say they died 28 years ago, that it's 2002 and that she's a 45 year old woman. Susan tells him he's lying to her he says that her name is Susan Kennedy and that she's a high school principal. She tells him, half crying, that she's not even finished high school yet, her name is Susan Smith and she's 16, she's going to go to the Led Zeppelin concert next week, she camped out all night to get tickets. Second row, right in the middle and that she going to get Jimmy's autograph. The scene pans out to show Karl still standing in the room looking at Susan.
Joe has made the rules stricter by a mile - what was one school night date a week has turned into maybe one a month. Michelle complains that he's being unfair, but Joe retorts that she should have thought about that before letting Motor mouth get stuck into her neck. She says it's just a love bite - he says it's cheap and horrible at which point Lyn self consciously rubs her neck. Michelle asks to take Harvey for a walk, Joe tells her they've got half an hour, and gets her to synchronise her watch. As Michelle and Connor go through to get the dog's lead, Joe asks why Lyn didn't have much to say. She shows him her love bite to rend him how hypocritical it would have been, at that moment Michelle and Connor come back through and see Lyn's neck. Lyn tries to tell them she walked into something, Michelle replies that she's had a collision with a big double standard. Michelle then puts on her best Joe impression and tells her father to Sit Down!
Stuart and Dee are coming back in from the pub, and Dee is trying to persuade Stu art not to sign up. She asks how long he'll be away for, he says four years. She says that four years of his life is a lot to give up to get over Felicity. He tries to say it's not about Felicity, Dee asks if he's developed a taste for khaki. He tells her he applied 12 months ago, and was considering it as a career, but Tracy convinced him out of it, then they broke up and now's his chance, he's got a place but needs to tell them in a couple of days. She asks why he's never mentioned it before, but Stu says he's not making the decision lightly, he's fairly sure, but needs to take care of a couple of things first.
Susan is staring at her (clearly not 16 year old) hands, outside her room Karl is thanking Darcy for everything he's done. Darcy says he loves Susan too and is there for him, and can look after the surgery. Karl apologises that he will have to follow through with the professional misconduct issue. Darcy tells him that's the least of his concerns. Karl says that the worst part is that Susan has lost her entire emotional reaction to things, and that Libby and himself don't even exist Darcy says it will be hard, but they'll get her back, and leaves Karl sat staring at his own hands.
Stuart has come round to see Flick. He's come to say goodbye, he tells her he's going away, but that he doesn't know where, and that he doubts he'll be back. She questions him leaving without plans, he tells her he has plans, and she asks why he's not telling her, she thought they were mates. He says they are, that's why he's saying goodbye. He tries to leave and tells her he'll send a postcard, but she asks for the real reason he came over - she says he came over to she how she'd react, if she'd try to stop him, if there was any chance they could get back together, and asks what if she said there was?