Walking hundreds of miles across Angola with UNITA guerillas led by the charismatic Jonas Savimbi, Gwynne Roberts filmed the Angolan Civil War from behind the lines. UNITA had waged an eight year guerilla war against Portuguese colonial rule, and after independence in 1975 they then fought the ruling Marxist MPLA government.

Encountering witch doctors, wild animals and political chaos, Gwynne filmed the rebel attack on the government troops garrisoned on the Benguela Railway.

The film was broadcast in the UK as one of the earliest independent productions for BBC Panorama.