With The Doctor's past being eaten and taken away by an unknown threat, he is joined by an old friend that is led with The Doctor to reunite with some past faces to try and stop the unknown from devouring his entire history.
With The Doctor's past being eaten and taken away by an unknown threat, he is joined by an old friend that is led with The Doctor to reunite with some past faces to try and stop the unknown from devouring his entire history.