The First World War is still raging in Europe when a mysterious disease begins killing soldiers on the Western Front. Long-practised quarantine measures ensure that when it first arrives in Sydney, it’s immediately identified and contained. But will these defences hold?

Featuring medical historian Dr Peter Hobbins.

MUSIC: Rise and Shine-Piano Duet: Hannes Hofkind, Cellofan: Eracilon, Charcoal: Chad Crouch, Cellomane: Eracilon, Melancholy: ANBR Adrián Berenguer, Perpetuum II: Ad Libitum, Sad Piano: DDmyzik, Désaccords: Eracilon, Ad Libitum: Color Blue, Au fil de la nuit: Eracilon, Rising Tides 3: ANW2538_68. (All tracks amended)