Ok, so this one is all about a cactus-man who arrives on the planet “Tygella” impersonating the “Doctor”(Tom Baker) whom he has trapped in the TARDIS with “Romana” (Lalla Ward) struggling to escape from - believe it nor not - a chronic histeratic time loop. If they cannot escape from this predicament in time, then “Meglos” might frame him for an heinous crime and get hold of the sacred dodecahedron thereby taking control of the planet and quite possibly the whole universe. Can this dastardly plan be thwarted in time? This is one of the dafter adventures for our travelling duo, with many of the sets looking a little too familiar. Still, Baker is on good form (both of him) with his tongue more in his cheek than usual, and the story whizzes along for four episodes using some quite interesting (for the time) techniques to illustrate the time loop and the bodily transformations and it at least looks as if it is set on a far-flung world rather than a quarry in Bedfordshire. Not the best, but steady stuff that entertains for an hour.

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