Episode 3 of the final season of , titled " How Long Has This Been Going On? ", first aired on September 21, 2022, on ITV. Directed by Nigel Cole, this episode features the return of a fan-favorite character and a medical mystery involving the local school. 🏕️ Survival of the Fittest
Several children and the new headmistress (who took Louisa's former position) fall ill with a mysterious infection.
Martin investigates the site and discovers the source of the illness is an infection in the school's soil , rather than a contagious virus. 🩺 Character & Cast Notes
Doc Martin eventually arrives to find Stewart hallucinating due to Q Fever , a bacterial infection often caught from livestock, which explains his bizarre behavior—including an incident where he jumps at the Doc while dressed as a sheep. 🏫 Trouble at Portwenn School
