Fugitive of the Judoon

Trigger-happy space police the Judoon are targeting 21st-century Gloucester, so the Doctor, Yaz, Ryan and Graham race back to Earth in order to prevent them doing too much damage to the cathedral city. But who are the Judoon looking for and what did they do to incur their wrath? Guest-starring Neil Stuke, Jo Martin and Ritu Arya.

S12Ep5