The Green Death - Episode 4

OK, this is the third time I'm trying to post this, so it's gonna be brief. Sick of typing. Good things in this episode: Shots of the masses of maggots, the destruction of the mine, seeing Mike as an undercover agent. Not so good: the Doctor dressing up as the milkman and the cleaning lady, the "shock" revelation that the mysterious unseen "BOSS" is a computer.