When the British Government receives a threat signifying Scorpia's return, Blunt and the Department begin the hunt. Meanwhile, in Malta, Alex follows the scientist working for them to his secret lab aboard a decommissioned ship.

Cast: Otto Farrant, Stephen Dillane, Vicky McClure, Brenock O'Connor, Ronkẹ Adékoluẹjo, Marli Siu, Thomas Levin, Jason Wong, Sofia Helin, Kyle Abdullah, Emmet Byrne, Philipp Christopher