The Doctor is joined on Uxarieus by Caldwell, an employee of the IMC (Interplanetary mining corporation) who's carrying out a mineral survey, looking for Duralinium. The Doctor is encouraged back to his spaceship where he meets Captain Dent, who is frustrated by the Doctor's presence on Uxarieus, and wishes to mine the planet until it becomes a slag heap. A man has turned up at the colony, claiming to be the last survivor of another colony further away, which was wiped out by giant lizards, he's asking lots of questions, and soon starts making trouble.
It seems the threat on the planet is coming from the IMC, they're keen to up their profits, and drive away the Colonists. Why has Jo turned into a tea lady?
Typical Pertwee episode, toys and automobiles, and plenty of combat.
Some of the sets are fairly well designed, the IMC's ship is rather good, no wobbly sets on show here, this one's rather well made, loving the retro lamp, chair and decanter, I'd have those!!!
I quite like Caldwell and Morgan, both are fairly well played and have their own strong characters, whereas Dent is a bit bland, we've had many characters exactly the same as him before, sadly the Colonists are a little uninteresting too.
It's starting to feel a little bit of a run of the mill Pertwee episode from the Dicks/Letts era, the good guys take on the big corporation.
I've quite enjoyed it, but it's a little slow, and it feels like they're repeating the cliffhanger from part 1.