Season 4, Episode 2
Doc Martin struggles to deal with the news of Louisa's pregnancy and is conflicted over what action to take. But Louisa is adamant that she doesn't want Martin involved. Doc's aunt Joan, however, insists that she help Louisa through the pregnancy.
Louisa accepts a job back at Portwenn Primary School, where the principal is causing public concern over his increasingly erratic behavior. Martin realizes the headmaster is unwell based on his blue urine sample. Things take a frightening turn when he takes a class of students to the beach.
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