The suspicious demise of a woman at the cult-like Wiltshire retreat of a self-proclaimed 'healer' sparks a global investigation and a link to a death in Australia.
A routine visit by the RSPCA to a house in Chigwell in Essex uncovers an underground UK dog fighting gang operating on a global scale.
A nationwide investigation begins when Dorset Police uncover an international gang posing as couriers to scam vulnerable pensioners out of thousands of pounds.