In East Anglia, Andrew Marr flies 10,000 feet above ground to locate a patchwork quilt of fields that produce a quarter of the country's wheat and barley. He also investigates how farmers are using military-style spy planes and GPS technology to monitor their crops, and faces his biggest challenge yet - a daunting plummet from an airborne plane in his first ever skydive.
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Ready to Watch Britain From Above, Season 1, Episode 3?