One of those Doctor Who stories that everyone over 35 knows about (the one with the giant maggots), The Green Death is a solid example of Jon Pertwees tenure.
Called out to a Welsh mining town plagued by mysterious deaths, the Doctor discovers toxic waste, a world domination plot and monster larvae.
While the maggots look like the inflated condoms they are and there are some appalling bluescreen scenes, the storys solid, with Pertwee at his regal best.