In a bid to leave the trenches for Paris, Blackadder volunteers to be the Official War Artist.
Blackadder has killed General Melchett's favourite carrier pigeon, and is facing the firing squad.
Melchett asks Blackadder to organise a cabaret to boost the troops' morale.
Blackadder joins the Royal Flying Corps, and encounters Lord Flashheart for the second time in his family's history.
A spy is operating at the military infirmary, and Blackadder is charged with finding him.
The final big push looms, and Edmund is willing to try anything to get out of it.