The curmudgeonly GP struggles to come to terms with his new role as a father, having planned to resume his career as a consultant in London before the arrival of his and Louisa's as-yet unnamed son. To make matters worse, he begins to have serious doubts about the competency of his replacement Dr Di Dibbs when she misdiagnoses a patient as well as herself. Martin is then dealt a devastating personal blow after hearing his aunt Joan has died. (This Episode Is Rated TV-PG-V)

The GP returns to his former post at the surgery after the departure of Dr Dibbs, agreeing to stay until a replacement is found. He persuades a reluctant Louisa to move into his house so he can help raise their son, and suggests they could all move to London together in the future. Martin then delivers the eulogy at his aunt Joan's funeral and speaks to her sister Ruth, who proves to be just as cantankerous as he is.

New receptionist Morwenna Newcross gets off to a bad start after arriving late on her first day, and her hyperactive behaviour leads Martin to believe she is high on drugs. Ruth tries to deal with an intruder on the farm who has stolen the hub caps from her car, and the sleepless nights begin to take their toll on Martin and Louisa, who are running out of ways to comfort their constantly wailing baby.

Louisa's hippie mother Eleanor arrives in the village, immediately taking over Martin's kitchen to prepare a herbal tonic, which she later gives to the baby to stop his crying. A culinary rivalry develops between Bert and Mark Bridge, the landlord of the Crab and Lobster pub, at Portwenn Fun Day with both keen to take advantage of the event by providing food for the spectators.

PC Penhale is shocked by the unexpected arrival of his ex-wife Maggie, who appears to have forgotten that they separated years ago and wants to know why he left her. Eleanor goes on a date with local fisherman Paul Hale, an old friend she has not seen since school, while Martin and Louisa finally agree on a name for their baby

Maggie gets the all-clear from the doctor and decides she will return to Bude, forcing PC Penhale to take desperate measures to persuade her to stay in Portwenn. Ruth uncovers a raft of family heirlooms while clearing out a barn at the farm, and the mounting tension between Martin and Louisa peaks when she discovers he has booked a date for James Henry's christening without consulting her.

Bert Large's restaurant business is financial trouble. He can't even afford the food and drink for a charity event to raise money for Florence Dingle's cat sanctuary. Mrs Dingle is distraught. She desperately needs the money to continue to look after the cats and kittens in her care. Bert is also being chased by loan sharks Alastair Tonken and his son Norman for the repayment of £1,000 they gave him to clear his debts, warning of repercussions if he doesn't pay up.

Mrs Tishell decides she can no longer hide her love for Martin and, fuelled by a cocktail of drugs, takes drastic action. While James Henry is in her care, she boards a bus out of Portwenn and leaves a message for Dr Ellingham to `meet them at the castle', forcing Martin, Louisa, Ruth and PC Penhale to mount a desperate search for the pair.

Martin and Louisa are about to get married but will it ever happen. Martin is feeling irritated by PC Penhale, who wrongly believes that he is going to be the best man and Louisa is also late for the service. The vicar has serious doubts as to whether she will turn up, leaving Martin on edge. After she finally arrives the couple are married. Things after the wedding don't go as Martin hoped and Ruth has a difficult time looking after James.

The GP is left holding the baby after upsetting the new childminder, but luckily Mike agrees to look after James at short notice. However, Louisa is not happy with the arrangement and an argument erupts between the newlyweds just as their guests arrive for dinner - and that's only the first of the evening's problems.

A stranger stops dead in his tracks when he sees Ruth in the village, and later he spies on her when she is having a coffee with Caroline. Ruth is not sure why, but she starts feeling uneasy. One of Louisa's pupils blames an upset stomach on a meal she ate at Bert's restaurant and writes about it in the school magazine. Bert and Al are furious, and they go to see Louisa wanting something to be done.

When Martin is talked into taking baby James to playgroup, he is forced to sing along with the other mums. As the parents pair up, one of them says she is worried about her daughter, to which Martin replies that the girl is probably just backward. Al helps Ruth move into a cottage in the village where she meets her new neighbour, a grumpy old man called Moysey. When Moysey goes for a repeat prescription for his asthma, Martin notices that his breathing has got worse - but he takes exception to being poked and prodded. Al admits he would like a girlfriend and asks Morwenna if she has any single friends. Morwenna asks her mate Janice, who is not impressed by the idea. So a desperate Al decides to sign up with Cornish Couples, a dating website.

Mrs Tishell returns to the village. Martin has to work out what is wrong with beach comber Lorna. Al and Morwenna have an internet dating disaster, and romance is blossoming for Bert and Jennifer.

Penhale spreads pandemonium throughout the village and Bert pops the question to Jennifer.

During an examination, Mrs Tishell is smitten by Martin holding her hands and staring into her eyes, and falls head-over-heels in love with him again. Two military policemen call at the police station looking for Mike Pruddy. Al pretends not to know Mike, then goes to warn him the army are looking for him. Louisa has shocking news for Martin.

Louisa is leaving for Spain, Bert and Jennifer's engagement party goes off with a bang, and Al is hailed as a hero for saving Caroline's life.

Wedding bells are set to ring for PC Penhale and Janice, but nothing ever goes smoothly in Portwenn.

Martin and Louisa search for a nursery now that Janice has left, and Mrs Tishell is shocked to find out that Al has very high blood pressure. Louisa also helps with the diagnosis of a pupil, which spurs her on to explore the possibilities of a change of career. This is not welcome news for Martin, who dislikes any kind of change, even if it could be for the better. Elsewhere, Ruth is approached about selling her farm.

Martin is left holding the baby when Louisa has to take Year Six pupils sailing. He has to collect James from nursery every afternoon, but with surgery hours Martin is constantly late.

Morwenna’s parents Jack and Tara pay a surprise visit, having been working as missionaries in Kenya. However, the reunion is tinged with sadness when it turns out that Morwenna’s mother has liver cancer, and has decided against treatment because of her faith. Louisa’s first online call for her new course does not go as planned – especially when Martin tells the lecturer exactly what he thinks – and Joe investigates a break-in at the school where nothing has been stolen. Martin Clunes stars in the comedy drama, with Jessica Ransom, Caroline Catz, John Marquez, Kevin Doyle and Rebecca Lacey.

Louisa has problems at school with Toby, Angela Sim’s Nephew. Meanwhile, Al has a ‘Large Whiskey’ order and has to ask Bert for some help, and Mrs Tishell seems to be having a delayed onset of mourning. Elsewhere, Martin and Louisa decide to try Mel’s suggestions of using amber beads to help James while he is teething.

Penhale decides to have a Police Open day to raise community awareness, but the only genuine visitor is an angry farmer who has had three of her sheep stolen. Meanwhile, Morwenna decides to take Al away for the weekend to try out Hannah’s new glamping site, but the trip does not go well as Al accidently burns down the yurt. Elsewhere, James has started biting not only Louisa but other children at the nursery. Louisa speaks to Tina about it, but is surprised to find out Tina has spoken to their lecturer about it too.

Martin wakes up to an empty bed. When he goes looking for Louisa he discovers she is trying to write her resignation letter.

Martin prepares to face his hearing, but despite having closed the practice, he finds all his patients are trying to make appointments. An American tourist who visited Portwenn previously returns to the town, hoping to research her family tree. However, she also has a medical issue, and comes to the troubled doctor seeking his advice. Louisa goes to see Chris to find out how serious the situation is, while the townsfolk take steps to show Martin how much he is appreciated.

Martin's medical career remains under scrutiny, as a GMC representative has come to assess him and his surgery.

Martin's GMC report requires he passes three refresher courses which will then decide whether he is deemed fit to practice, starting with phlebotomy.

Ruth is concerned about becoming increasingly forgetful, and is even more perturbed when Martin offers to perform a mini mental state examination.

Martin has his second GMC assessment - mock surgery - and Buddy is missing. Meanwhile, Ken's arrival does not bring good news for Al and Bert, and Penhale unhappy with the arrival of his predecessor, Mark Mylow, who tries to take charge of his investigation.

Martin investigates after local farmer Dennis Thorpe shoots at Robert for taking some of his eggs. Meanwhile, Emily returns to the surgery to see Martin after her acne medication caused a bad reaction, a secret bidder buys the Crab and Lobster pub, and Louisa ponders if she should see a fertility specialist.

Martin and Louisa have their first fertility consultation with Dr Emma Ryder. Meanwhile, a case of vandalism at a local surf school is reported and PC Joe Penhale investigates. Elsewhere, Dr Edward Mullen returns to the surgery, and Bert is feeling the pressure from Caitlin. Starring Martin Clunes, Lucy Russell and Conleth Hill.

Martin has to rush Buddy the dog to the vets. Meanwhile, Mrs Tishell's young cousin Sarah joins her for some work experience, but it does not go to plan, and one of Louisa's clients arrives at the surgery unannounced, posing a dilemma.

Martin rushes to Ruth's for a medical emergency, and preparations for Morwenna and Al's wedding do not go to plan. Elsewhere, Martin takes his final GMC assessment under the watchful eye of eminent surgeon Bernard Newton, who monitors Martin's skills in assisted surgery.