Stargate SG-1

Unseen alien forces are covertly plotting to eradicate humanity, operating from the shadows and threatening the planet. Their scheme unfolds amid a prolonged war of attrition being waged against the Goa'uld, a relentless struggle that pits both sides against each other.

Show and Tell is a programme presented in the format of an episode, offering a compact narrative that fits within a single instalment. The piece is self‑contained, delivering its story in a brief, focused structure typical of an episode‑type broadcast. The central thrust of the episode follows a cadre of invisible extraterrestrials who are quietly organising a scheme to eradicate the human race. Their machinations unfold against the backdrop of a drawn‑out war of attrition, a prolonged struggle in which they are locked in combat with the Goa'uld. These unseen beings operate from the shadows, their lack of physical visibility allowing them to manoeuvre without immediate detection. While they pursue their destructive agenda, the Goa'uld are simultaneously engaged in a grinding, low‑intensity conflict that saps resources and attention, creating a volatile environment in which the alien plot can advance. The episode therefore juxtaposes two intersecting threats: the covert, planet‑wide menace posed by the invisible aliens and the ongoing attritional clash with the Goa'uld. This dual pressure heightens the peril facing humanity, as the unseen assailants aim to finish what the Goa'uld have already begun – the systematic destruction of mankind.