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Sweden has been a European hotspot for gang-related shootings and bombings. Ashely spends a week meeting young men who don't flinch from carrying a gun and using it if necessary.
Colombia is known for cocaine production, but Ashley uncovers another highly priced product that's funding deadly organised crime groups – gold.
Ashley heads to the Philippines to find out if joining a gang is the only way to survive in the extreme poverty that affects so many in the capital, Manila.