While grappling with the true nature of Martha’s work, Thomas agrees to help his father – and seeks Alfie’s assistance. Meanwhile, after being questioned by Aziz, Pennyworth escalates his search…

Kreizler mourns the loss of a friend. Sara pushes the team to forge ahead. Moore warns his friend the killer will strike again. Cyrus seeks revenge.

In a sun-dappled Sherwood Forest, The Doctor discovers an evil plan from beyond the stars. But with the fate of Nottingham at stake (and possibly Derby), there’s no time for…