Original air dates 30 September – 21 October. 1978. Written by Douglas Adams, yes, that Douglas Adams.
Things happen, but I didn’t bother writing them down. A mean captain runs his crew with a literal iron fist. Doctor and Romanna arrive.
They find rare stones lying in the streets.
Hooded worshippers go to harvest a poor schlub. In the hills, the maked worshippers come.
Man in black arrests Romana for being forbidden.
Hooded worshippers are going into town to collect a telepath. Black guards try and stop them, fail. Guards are killed. Captain orders the telepath killed.
K9 stuns the black guards, the hooded worshippers (mentiads) arrive. They blast Doctor, who faints as the credits roll.
Mentiads take telepath.
Captain rants at crew. Captain’s robot parrot zaps someone.
Romana is taken by Guards to the Bridge.
Doctor steals an aircar in a tedious way.
Romana is taken to the Captain and talks to him for a while.
Doctor breaks in.
Romana works on their equipment and discovers it is a huge matter transmatter. The Doctor blunders in and is roped into fixing the ship. Doctor gets back to TARDIS, under guard.
K9 and the girl find the Mentiads while the Doctor, Romana and Clueless Guy investigates the mines. Captain wants them all killed for seeing the mines.
Chased by the Guard, who wants to kill them. The Mentads find them, and say “Doctor we have come for you” leading to credits.
The Mentads sheild them while they flee. K9 and the Girl are there when they come back. The Mentiads want to know what the heck is going on.
Discovering this planet transmats around another planet and grinds up to mine it. This releases psychic energy which activates the latent telepaths in the Mentiads.
The Doctor is captured again.
The Captain finds a planet with the resources they need and prepares to jump to it and destroy it. It’s called Terra in Sol system. Whoops!
Doctor talks the Captain into revealing his plan. Doctor and Captain shout at each other.
K9 distracts the Captain while the Doctor flees. K9 and Captain’s parrot shoot it out.
They find the Queen, held in stasis. Doctor sends K9 and Clueless boy to sabotage the enegines. Goes to see Captain and stop him. Gets walked off the plank. Credits roll as the Doctor falls.
Captain engages in an evil laugh, the Doctor laughs with them. He had a projector to project himself.
Romana and the Mentads get to the door, finally, after a long and distracting hike.
Doctor and Romana meet outside the Bridge, and fight their way to the engine room. Doctor and Romana go to TARDIS to prevent the big planet from dematerailizing over Earth.
Doctor gets the Mentads to toss a spanner in the works literally, and break the planet-ship. Doctor rescues the Key To Time and blows up the Captain’s bridge and Queen. Credits roll, and they have the second piece.