Mr Khan gets into a state at a stately home, when Naani takes the law into her own hands.
Mr Khan bites off more than he can chew when he takes on a new role as a lollipop man, and a family photo opportunity causes friction between sisters Alia and Shazia.
Baby Mohammad is having a few unsettled nights, and Shazia and Amjad are finding it difficult to cope with the lack of sleep. Mrs Khan thinks they need to spend some quality time together, and deputises Mr Khan to book them a romantic weekend away. Mr Khan is trying to win a Pride of Birmingham award (Alia misinterprets this as him going on a Birmingham Pride march), which leads to an altercation with a parking attendant at the supermarket. The dispute escalates and Khan finds himself staging a protest against parking fines from inside his car (after the attendant tries to have it towed away).
Mrs Khan decides she and Mr Khan should have more 'together' time, and invites Khan along to watch her tango class demonstration. Mr Khan already has something planned - he's opening a fried chicken franchise on the high street. He is keeping it a secret from Mrs Khan as he has invested their pension money in it. He enlists Alia, Amjad, Naani and nephew Faraz as his chicken shop crack team. Matters are further complicated when the manageress at the chicken shop, Sandra, takes a shine to Amjad. But for Mr Khan this could be just what he needs.
While trying to teach Baby Mo how to play cricket, Mr Khan discovers that his little grandson might be psychic and immediately sets him to work picking his lottery numbers.
Amjad's mother, Mrs Malik, is threatening to solve Shazia and Amjad's housing problems by taking them with her to live in Bradford. Mrs Khan succumbs to stomach pains as a result of the stress, and the family rushes her to hospital.
On her hospital gurney, while waiting to see a doctor (who she tries to set up with Alia), Mrs Khan makes her husband promise to stop Shazia, Amjad and Baby Mo going to live with the in-laws. Khan has to use his ingenuity - and a DNA testing kit - to try and save the day, not before electrocuting himself on a defibrillator and getting involved in one mo' mix up.
In line with the great tradition of British Muslim baking, Mr Khan enters the Great Sparkhill Bake Off. He's making his own version of the lemon drizzle inside-out cake. Meanwhile, there are more pressing problems on the domestic front: Alia's got a boyfriend. Mrs Khan is worried that he sounds too rough and sends Mr Khan (and son-in-law Amjad) to give him a talking to - at a pub.
Snowmen, reindeers and an actual donkey, it must be Christmas in the Khan household. Mr Khan embraces Christmas like never before, even launching his own range of traditional halal mince pies with the help of a local business dragon.
Shazia and Amjad try to find somewhere else to live, because their landlord is selling their house and they can't afford the deposit to buy it. Naani has a solution - she's going to give them the money for the deposit. Her only mistake is entrusting it to Mr Khan, who promptly loses it.
To retrieve it, he heads to the Community Centre's Winter Wonderland, where Dave's putting on a show about a talking snowman that may or may not be able to fly. Mr Khan finds himself re-creating an iconic festive scene. The story ends with a tearjerker as Mr Khan suffers a very personal loss.