But we here at RadioTimes.com<\/a> have got one last little theory for you \u2013 and it comes from a recent press launch for the new series.<\/p>\n Speaking to RadioTimes.com<\/strong> and other press, Yaz actress Mandip Gill reflected on a particularly memorable stunt she filmed for the new six-part series, saying: \u201cIn the first episode, there\u2019s a scene in which we\u2019re above an acid ocean. It was wire work. We were quite excited. And then cut to an hour upside-down \u2013 I was like, \u2018My head\u2019s going to explode. It\u2019s not fun anymore. The harness is too tight.\u2019<\/p>\n \u201cWe got some really unflattering behind-the-scenes pictures and footage, which I actually just looked at the other day. There\u2019s a whole bit of being upside-down, swinging around, screaming.\u201d<\/p> Gill explained that she and co-star Jodie Whittaker \u201cgot a little competitive\u201d as they each performed this particular stunt in turn. \u201cWe had to swing ourselves around. Jodie went first. So you\u2019re on two wires, pushing yourself, pushing yourself\u2026 she did really well. And because we\u2019re so competitive, when it was my turn, I went in, and absolutely smashed it, and got a clap \u2013 I got a clap off everyone for doing an extra twirl, just because I wanted to out-twirl her\u2026<\/p>\n \u201cI hope that bit makes it, because it was really painful!\u201d<\/p>\n It\u2019s a fun anecdote, but might it actually contain a hidden spoiler? Because in our Doctor Who-addled brains, something clicked when we heard the phrase \u201cacid ocean\u201d\u2026<\/p>\n As fans of the classic 1963-1989 series of Doctor Who will know, the show\u2019s fifth ever story \u2013 broadcast in spring 1964 \u2013 was The Keys of Marinus<\/a>, a six-episode adventure written by the Daleks\u2019 creator Terry Nation which saw the First Doctor (William Hartnell) and his companions embark on a quest across the titular planet Marinus.<\/p>\n The first episode of the story \u2013 entitled \u2018The Sea of Death\u2019 \u2013 saw the TARDIS land on an island of glass, surrounded by\u2026 a sea of acid.<\/p>\n What\u2019s more, The Keys of Marinus is noted in Doctor Who fandom for its unusual structure \u2013 unlike most stories which take place in a single location or just a handful of settings, Keys had its main cast move to a different setting in almost every episode. Flux is similarly expected to tell a single story across six episodes, with the Doctor (Whittaker), Yaz (Gill) and new companion Dan (John Bishop) embarking on a series of mini-adventures all linked by a common theme or quest.<\/p>\n Coincidence? Possibly. An acid ocean might just be an evocative idea that Flux writer and Doctor Who showrunner Chris Chibnall wanted to use again, with no ties to The Keys of Marinus. But in a season that\u2019s already incorporating Sontarans<\/a>, Cybermen, Weeping Angels and more, we\u2019re not prepared to totally rule out another nod to the show\u2019s past with a return trip to Marinus.<\/p>\n Only a week-and-a-half to go till we find out for sure. Put us out of our misery, Chris\u2026<\/p>\n Check out the official Doctor Who: Flux trailer below:<\/p>\n![\""Doctor\"](\""https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/3\/2021\/10\/doctor-who-sea-of-death-9a7dae0.jpg?quality=90&resize=620%2C413"\" "\\"\"doctor-who-sea-of-death\"\\"\/")
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