History Recap / DoctorWhoS9E3TheSeaDevils

* [[WhyDidItHaveToBeSnakes Why Does it Have to be Water?]]: Creator/RogerDelgado, who couldn't swim, was not happy at all about having to float in the ocean for the rescue scene. For the ski-boat chase, they had to have Creator/JonPertwee chase a stunt double, as Delgado flat-out refused to shoot the sequence.

* NoSell: Trenchard claims that his guards are immune to the Master's hypnotism, and demonstrates it to a sceptical Doctor. It proves to be an InvokedTrope -- Trenchard and the Master staged the scene for the Doctor's benefit.
* ObviousStuntDouble: In the scene where the Doctor and Jo arrive at the sea fort, Jo is clearly not being played by Creator/KatyManning (in fact, the stunt double is a man, stunt regular Stuart Fell).

'''Production code:''' LLL

Written by Creator/MalcolmHulke. This six-episode serial first aired from February 26 to April 1, 1972.

* CrystalClearPicture: WesternAnimation/TheClangers: the picture is inserted via yellowscreen (yellow was the preferred matte colour for BBC Chromakey work in the '70s).

The one where the Doctor steals the Master's lunch... and [[ReversePolarity reverses the polarity]] of the neutron flow!

->'''The Doctor''': If Horatio Nelson had been in charge of this operation, I hardly think that he would have waited for official instructions.\\
'''Captain Hart''': Yes... a pretty impulsive fellow. If one can believe the history books.\\
'''The Doctor''': History books? Captain Hart, Horatio Nelson was a personal friend of mine.

-> '''The Doctor''': If Horatio Nelson had been in charge of this operation, I hardly think that he would have waited for official instructions.\\

The one where the Doctor steals the Master's lunch... and reverses the polarity of the neutron flow!

* [[WhyDidItHaveToBeSnakes Why Does it Have to be Water?]]: According to the crew, Roger Delgado, who couldn't swim, was not happy at all about having to float in the ocean for the rescue scene (while fear is stretching it a bit, the crew recalled him being extremely uncomfortable around water). For the ski-boat chase, they had to have Jon Pertwee chase a stunt double, as Delgado flat-out refused to shoot the sequence.

** And mortified Creator/RogerDelgado - who was deathly afraid of the sea, but did his stunts anyway like a trooper.

-->'''Guard:''' You're [[Series/ThePrisoner1967 The Prisoner]].
** Which might explain why his guards all wear cloaks and badges, and drive about in quirky white cars.

* YouHaveOutlivedYourUsefulness: While the Master never outright says this to Trenchard, the trope is demonstrated in him not warning Trenchard about the impending Sea Devil attack, nor even reacting upon seeing his dead body.

* YouFightLikeACow: The Doctor keeps up a steady stream of smartassery while dueling the Master.

* [[WhyDidItHaveToBeSnakes Why Does it Have to be Water?]]: According to the crew, Roger Delgado, who couldn't swim, was not happy at all about having to float in the ocean for the rescue scene (while fear is stretching it a bit, the crew recalled him being extremely uncomfortable around water). For the skiboat chase, they had to have Jon Pertwee chase a stunt double, as Delgado flat-out refused to shoot the sequence.
* YouFightLikeACow: The Doctor keeps up a steady stream of smartassery while duelling the Master.

* ArmchairMilitary: Walker orders the naval assault on the Sea Devils' base while eating a meal.

** And mortified Creator/RogerDelgado - who was deathly afraid of the sea, but did his stunts anyway like trooper.

Written by Creator/MalcolmHulke. This serial first aired February 26-April 1, 1972.

* StockFootage: A helicopter changes make and colour so that it can blow up via stock footage.

* KarmaHoudini: The Master

* StayInTheKitchen: Played with. Midway through the story, Third Officer Blythe is only too happy to sort out coffee and sandwiches for the Doctor and Jo. When Walker first arrives and asks her to sort out breakfast for him, however, she's visibly rankled by his request, making it likely that her doing so for the Doctor and Jo was motivated mainly by sympathy for what they'd just been through on the fort.

* ReversePolarity: The Doctor sabotages the Master's machine by "reversing the polarity of the neutron flow". This is [[NeverLiveItDown the only time]] the Third Doctor utters the whole phrase instead of just parts of it.

* AbsenteeActor: This is the only contemperary Earth-set Third Doctor story not to feature Creator/NicholasCourtney as Brigadier Lethbridge-Stewart. Captain Hart more or less takes over his role.

* [[WhyDidItHaveToBeSnakes Why Does it Have to be Water?]]:
** According to the crew, Roger Delgado, who couldn't swim, was not happy at all about having to float in the ocean for the rescue scene (while fear is stretching it a bit, the crew recalled him being extremely uncomfortable around water). For the skiboat chase, they had to have Jon Pertwee chase a stunt double, as Delgado flat-out refused to shoot the sequence.

** According to the crew, Roger Delgado was not happy at all about having to float in the ocean for the rescue scene (while fear is stretching it a bit, the crew recalled him being extremely uncomfortable around water). For the skiboat chase, they had to have Jon Pertwee chase a stunt double, as Delgado flat-out refused to shoot the sequence.
** Besides being afraid of the water, Delgado couldn't swim.