Steed goes undercover, on the yacht where Venus is entertaining, to investigate the mysterious death of a deep-sea diver.

A decent episode although it lacks location filming. Bonus points for Steed's classic line; referring to Mason as "the fat pig in the middle".

After One-Six interrupts Steed, Patrick Macnee stares quizzically into the camera, wondering perhaps if they should do the take again.

More off-camera coughs... Three during one scene in the ship's laboratory, and again later on in two separate scenes.

When Steed is confronted by Ariston and Helena with a gun, the camera wheels so fast that there is a bang followed by a brief moment of shudders.

Having thwarted Helena and Ariston's plans, Steed departs... along with the boom mike.

Speaking of the boom mike, its shadow is seen swinging across Pitt-Norman's face after Anna Lee gets hold of Venus' cabled message.

  - Courtesy of Wayne Beckett / Stay Tuned.

Ariston: (to Steed) "Or she will shoot you and dumped you overboard."

Steed: (to Helena) "Look, you gotta trust me. Come on, you can't go shootingpeople forever."