BBC Two has released a new trailer for factual drama, 37 Days from writer Mark Hayhurst (Hitler On Trial).
The drama reveals the incredible events that took the world from total peace to total war in the outbreak of the First World War in 1914.
The complex, behind-closed-doors story stars, Ian McDiarmid, Sinead Cusack, Tim Pigott-Smith, Bill Paterson and Kenneth Cranham.
37 Days is due to air in March.
Watch the trailer below…