The Turn of the Screw (audio story)

 was the third story of the eighth season of Big Finish Productions' Short Trips series.

Publisher's summary
Charlie Sato has been chasing a bit of alien junk from England to Puerto Rico. He's finally got his hands on it - but now he's got to get it safely off the island. The aliens he stole it from want it back, and someone else has hired a group of thugs to get hold of it. And then there's the original owner - he might come looking too.

All this for a screwdriver? Someone, somewhere must want to unscrew some pretty important screws.

Plot
to be added

Characters

 * Eighth Doctor
 * Charlie Sato
 * Ruth Matheson

Continuity

 * The Doctor drives his Volkswagen Beetle. (PROSE: Vampire Science)
 * The destroyed screwdriver is first found in Leadworth, where a future incarnation of the Doctor lost it. (TV: The Eleventh Hour)