Seven to One (audio story)

 was a 2011 Big Finish Productions audio short story, read by Nicholas Briggs. It features the first seven Doctors and is published in eight parts spread across the disk between the other stories. It was marketed as a First Doctor story and listed as by Big Finish.

Summary
Seven Doctors... one tricky situation. Will the First Doctor be able to save his future incarnations from a deadly game?

Plot
The first seven incarnations of the Doctor use various methods to attempt to pass a test set by the entities of Grey Space. Each Doctor fails until it falls to the First Doctor to save them all. Part of the test involves getting past a robotic guard. The Seventh Doctor deactivates the android guard by using the default password. The Sixth Doctor convinces it to deactivate by making it believe it has no purpose. The Fifth Doctor uses a Nanoware maintenance engineer card to convince the android to shut down for an inspection. The Fourth Doctor uses his scarf to wrap up the androids limbs, puts licorice whirls over its visual sensors, jelly babies in its audio receptors and sherbet in its processing unit. The Third Doctor had the android demonstrate its anti-matter rifle on the floor before pushing it into the hole it had created. The Second Doctor convinces the android to demonstrate its gun upon itself. The First Doctor writes PTO (please turn over) on both sides of a piece of paper and gives it to the android; this leaves the android turning the paper forever.

Characters

 * Seventh Doctor
 * Ace
 * Sixth Doctor
 * Peri Brown
 * Fifth Doctor
 * Nyssa
 * Fourth Doctor
 * Romana II
 * Third Doctor
 * Jo Grant
 * Second Doctor
 * Jamie McCrimmon
 * First Doctor
 * Susan Foreman

Continuity

 * It is yet unknown whether the Second Doctor was up to, whether it was Season 6B or earlier on when Jamie was fairly new.