The team sets to work on a badly beaten man covered from head to toe in lesions and lacerations - and interests are piqued by the discovery of a serial number branded on the patient's arm, suggesting he may be a slave labourer or a victim of trafficking. However, as the man's temperature soars, the doctors realise they may be dealing with a dangerous, and highly infectious, disease - and the trauma centre is forced into lockdown.
Elenco: Lennie James , Catherine Walker , Catherine Walker , Kimberley Nixon , Neve McIntosh , Prasanna Puwanarajah , John MacMillan , Ellen Thomas , Mali Harries , Paul Bazely , Danny Kirrane , Peter Sullivan , Emma Fryer .