Episode 4

Barrowman continues training with Two Section and simulates a gas attack, during which Wrattan collapses.

While the sections wait by the barrack room clock for their leave to begin, the nuclear attack warning sounds. Barrowman and Hobbs salute the impending Armageddon with a bottle of whisky. Hobbs, now slightly drunk, confronts Norah about their relationship.

White-Bowne has found out that Barrowman used to be a sergeant and thinks Hobbs might know the story of why he was demoted to corporal.