![](https://image.tmdb.org/t/p/original/wzbbvCgE1zrtlXYIxKsjED8iSiS.jpg)
![](https://image.tmdb.org/t/p/w342/xinqAmYrZ1TEwowcQhgTkZVtVE0.jpg)
The Sea of Death
The alien world of Marinus. Perfect peace has reigned here for decades due to the mind-controlling influence of a machine known as the Conscience. But now a race known as the Voord have developed an immunity and Arbitan, keeper of the machine, has been forced to scatter the vital control keys around the planet. Now he needs the help of the time travellers to get them back - it will be an extraordinary journey, with perils every step of the way...
![](https://image.tmdb.org/t/p/w300/lg2ZQpxhWLdtkeBUwfqzJ1HpU28.jpg)
![](https://image.tmdb.org/t/p/w300/unhJQWcgh6FPlyCaKXTnSLT1DrJ.jpg)
![](https://image.tmdb.org/t/p/w300/4DESj7hC2SRQdwNg2F22xuFuukj.jpg)
![](https://image.tmdb.org/t/p/w300/h5VdQxpKfS7nKKWHwY55CN0Sm7E.jpg)
Other episodes for this season
![An Unearthly Child](https://image.tmdb.org/t/p/w300/geJKM80SjYZIG5XNwonRHIkKBrF.jpg)
![The Cave of Skulls](https://image.tmdb.org/t/p/w300/svg8CUTdkVVNqaJKWp6vd999ahO.jpg)
![The Forest of Fear](https://image.tmdb.org/t/p/w300/8KShThM5MYOt0WHUZwo3ZEbzhKk.jpg)
![The Firemaker](https://image.tmdb.org/t/p/w300/cEKmnrVntMeMs5u1Lz6DERFL6rU.jpg)
![The Dead Planet](https://image.tmdb.org/t/p/w300/j72wf17IaDFpoQLopk7dcnsY8Hw.jpg)
![The Survivors](https://image.tmdb.org/t/p/w300/gJlTkmLPY0GaraAINDcaihcjb7x.jpg)
![The Escape](https://image.tmdb.org/t/p/w300/imhBH4Xp810Ay06eGdugQ1NkoVg.jpg)
![The Ambush](https://image.tmdb.org/t/p/w300/7as1SoJ53JqC5cXUA2QQ7E35dQ2.jpg)
![The Expedition](https://image.tmdb.org/t/p/w300/oQY5IqMpRf43Jd31utRSI5omYw0.jpg)
![The Ordeal](https://image.tmdb.org/t/p/w300/pTtJe298aGnAZCyS2s0bGagGUYv.jpg)
![The Rescue](https://image.tmdb.org/t/p/w300/x2oMC7WR8cBMdxvUFTZNf6MDPzD.jpg)
![The Edge of Destruction](https://image.tmdb.org/t/p/w300/jKrvADP2Y9Cn0SnxrOyUiA1QVIi.jpg)
![The Brink of Disaster](https://image.tmdb.org/t/p/w300/1eGhGmP9khcWpJTANoxJS9cpvth.jpg)
![The Roof of the World](https://image.tmdb.org/t/p/w300/TOqRq2oDkwPnmFSnegPTZLEzOW.jpg)
![The Singing Sands](https://image.tmdb.org/t/p/w300/K6JRjZJzFveZUPc2XKknXnQlrU.jpg)
![Five Hundred Eyes](https://image.tmdb.org/t/p/w300/xTGwkJCgl7Id26CLUbGtDQ77CnP.jpg)
![The Wall of Lies](https://image.tmdb.org/t/p/w300/yaA0cVFWve5b3LwR087LmXOamUT.jpg)
![Rider from Shang Tu](https://image.tmdb.org/t/p/w300/A8go9QvsmPIH5fTh4oN3l79oQL9.jpg)
![Mighty Kublai Khan](https://image.tmdb.org/t/p/w300/1E2iGQq2Cg4OVNVAmQqkteZB4Ts.jpg)
![Assassin at Peking](https://image.tmdb.org/t/p/w300/fNYlGCXPgx6m4BFMWxNm721zTqu.jpg)
![The Sea of Death](https://image.tmdb.org/t/p/w300/wzbbvCgE1zrtlXYIxKsjED8iSiS.jpg)
![The Velvet Web](https://image.tmdb.org/t/p/w300/nbeXMsFfdjSTgFTx1OPAYjFhBb.jpg)
![The Screaming Jungle](https://image.tmdb.org/t/p/w300/7VnAQDnJf2g3Oin3GziVcZ3vZ0I.jpg)
![The Snows of Terror](https://image.tmdb.org/t/p/w300/evNbo505fOLRVgTvjKTNhUItgeV.jpg)
![Sentence of Death](https://image.tmdb.org/t/p/w300/1ODeeeQYX2OncpGsdrwTygXVuaW.jpg)
![The Keys of Marinus](https://image.tmdb.org/t/p/w300/xB0IBS7OUkziNKF7n7awJiNNNn1.jpg)
![The Temple of Evil](https://image.tmdb.org/t/p/w300/lBqX2ZJPReAPjWzhZBzzQJTyezi.jpg)
![The Warriors of Death](https://image.tmdb.org/t/p/w300/1QxJmoxInAoRWq3WxduHUZS3v0a.jpg)
![The Bride of Sacrifice](https://image.tmdb.org/t/p/w300/tF6ZkamP9JKsot4NfQ6GM7F4DFE.jpg)
![The Day of Darkness](https://image.tmdb.org/t/p/w300/Ad8FPwVoePwH04zSf216HyOzLFR.jpg)
![Strangers in Space](https://image.tmdb.org/t/p/w300/eIwfrmqo3lTKtQGdSyBkQVoNng6.jpg)
![The Unwilling Warriors](https://image.tmdb.org/t/p/w300/q83uDInHCaYr93VOcf8VGxWSR3o.jpg)
![Hidden Danger](https://image.tmdb.org/t/p/w300/xFC9qJugGoNeuUfL3xvxNcGyOag.jpg)
![A Race Against Death](https://image.tmdb.org/t/p/w300/9Btlc1xdFGRbl9gDrXY4mPbJcvD.jpg)
![Kidnap](https://image.tmdb.org/t/p/w300/qfT7yQ0uKDKZrvpzHod392PpPe5.jpg)
![A Desperate Venture](https://image.tmdb.org/t/p/w300/b2Oq2VULm6I2CqBQHAwQpeEOAHw.jpg)
![A Land of Fear](https://image.tmdb.org/t/p/w300/zrBYkeiA7wCNx13KGpDlRVm6usU.jpg)
![Guests of Madame Guillotine](https://image.tmdb.org/t/p/w300/hXVliwkpfDJ1A5OXqRheaofPdEY.jpg)
![A Change of Identity](https://image.tmdb.org/t/p/w300/e3Pzn5nA1h5WUFzySWJRru0W885.jpg)
![The Tyrant of France](https://image.tmdb.org/t/p/w300/8W65CL6CkBnH8m4MAhudo6Ap1ex.jpg)
![A Bargain of Necessity](https://image.tmdb.org/t/p/w300/b130n367NCCsHdGXVjZYvkrykhC.jpg)
![Prisoners of Conciergerie](https://image.tmdb.org/t/p/w300/pVKRn0LlDlcH8sCrh5ZJZ8j45kq.jpg)