It’s 2019, and a senior figure in the Kinahan Cartel is in custody, facing over 20 years behind bars for drug trafficking. Meanwhile, the NCA receives intelligence pointing to a buried cache of firearms and ammunition in a field in Northern Ireland.

What followed was a complex and extraordinary NCA-led investigation – one that exposed a secret plot and delivered a major blow to organised crime.

Hear from specialist officers from the NCA and PSNI, as well as Irish investigative journalist Nicola Tallant, as they reveal how one of the biggest twists in British criminal history was uncovered.

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