Portwenn is buzzing with arrangements for the wedding of Doc Martin and Louisa. Will they finally tie the knot, or will the villagers have to put the confetti back in the box again?

Martin and Louisa host a disastrous dinner party, their new nanny quits, and PC Penhale goes on a charm offensive to win friends.

Ruth has a mystery admirer who unnerves her. Louisa becomes Bert's least favorite person when one of her pupils pens a damning review of his restaurant in the school magazine.

Martin is coerced into taking James to a playgroup, and Ruth has problems with her new neighbor.

Mrs. Tishell returns to the village. Martin tries to find out what's wrong with beachcomber Lorna. Al and Morwenna have an internet dating disaster, and romance blossoms for Bert and Jennifer.

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

Louisa is hit by a car and rushed to the hospital, where she tells Martin some shocking news. Mike's shady past comes to light, and Al's dad dismisses his business plan.

Louisa prepares to leave for Spain, Bert and Jennifer's engagement party goes off with a bang, and Al engages in some heroics.