The Borderland

The Borderland is the tenth episode of the Common Series, and it features the return of the Master.

Sinopsis
Did you miss me? - The Master

The Doctor begins to search for the cause of the cracks in the multiverse, and his search brings him head to head with his not-so-dead archenemy. The Master is back after a miracle escape and claims to be redeemed. Can the Doctor trust him as there's more at work than the two of them.

Cast
The Doctor - Matt Smith

Amy Pond - Karen Gillan

The Master - James McAvoy