P.C. Joe Penhale is desperate to keep Maggie and show her he's changed; that he's the macho husband she wants. But Maggie plans to return to Bude. Penhale resorts to desperate measures to convince her to stay, including surreptitiously paying people to be nasty to her so he can step in and assert his authority, and show her he can be tough. Aunt Ruth uncovers a chest of family heirlooms when she clears out a barn at the farm, including photos as Martin as a six-year-old schoolboy. The photos bring back poignant memories of an unhappy childhood for Martin and it prompts him to think of registering their son for boarding school. But Louisa is horrified at the thought of sending him miles away to school. Tension is mounting between Louisa and Martin. They can't seem to agree on anything. The final straw for Louisa comes when she discovers Martin has set a date for their baby's christening without even consulting her. Louisa decides she has had enough. She packs a bag, and takes the baby back home to her mum.
Doc Martin: Don't Let Go, Thursday at 8 p.m. on PBS 6.