Liverpool 1

Day to day, on the streets, they're at the sharp end of the fight against the drug pushers, porn barons, paedophiles and pimps who run this great port's crime networks. In this dark unequal world DC Isobel de Pauli is a stranger - not to crime, but to the ancient, unseen blood connections that pulse in the veins of Liverpool's criminals... and cops.

• Mark WomackDC Mark Callaghan
• Samantha WomackDC Isobel de Pauli
• Tom GeorgesonDI Howard Jones
• Paul BroughtonDC Frank White
• Katy CarmichaelDC Jo McMullan
• Eamon BolandChief Inspector Graham Hill