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Series 1

Episode 3: Britain's Secret Engineers

Duration: 1 hour

on BBC Four HD

Documentary series. Workers at British defence contractor QinetiQ reveal a handful of their secretive projects, including robots to defuse roadside bombs. Show more

BBC Four HD

About BBC Four

BBC Four reflects arts, music and culture with an ambitious range of intellectually and culturally enriching programmes, taking an expert and in-depth approach to its subjects.