Don't Let Go

S5 E6: PC Joe Penhale wants to prove to Maggie that he has changed, but will his efforts to show off his macho side convince her to stay in Portwenn? Aunt Ruth discovers a cache of photos from Martin's unhappy childhood. But the doctor's suggestion that he and Louisa send their son to boarding school only adds to the tension between them. When things finally reach a boiling point, Louisa makes a painful decision.