The Avengers

Steed and Emma are called to investigate a puzzling situation in which men normally regarded as dependable begin regressing to childhood behaviours, within their community. These men start revealing vital secrets to an elderly nanny, prompting the duo to uncover the cause.

Something Nasty in the Nursery is a television programme presented as a single episode. It falls within the genre of an episode‑style narrative, and its title suggests a focus on unsettling events linked to a nursery setting. The piece is listed simply as a programme, without further classification beyond its episode format. The story centres on Steed and Emma as they take on an unusual case. They discover that men who are normally dependable are suddenly behaving as though they have reverted to a childlike state. In this regressed condition, these men begin to disclose information of significance to an elderly nanny, a figure who appears to hold a pivotal role in the unfolding mystery. The investigation drives the episode forward, with Steed and Emma probing the reasons behind the men’s sudden infantilism and the nature of the secrets being shared. The old nanny serves as the unexpected recipient of the revelations, creating a link between the adult world’s hidden truths and a seemingly innocent caretaker. Throughout the episode, the duo’s inquiry aims to uncover why trustworthy individuals would abandon their usual composure and why the nanny becomes the conduit for these important disclosures.