Wolf... archetypal symbol of untamed ferocity and elemental, almost supernatural cunning. Drawn to the chase by the eerie howls of their killing song, the pack forms a single, bloodthirsty entity, bent on relentless pursuit, inevitable capture and swift, certain death. Journey to the spectacular, isolated mountain realms of northern Spain, where the last remaining Iberian wolf pack wages a mortal battle for survival. The wolves' legendary intelligence, their lethally effective social hunting skills and awesome powers of endurance are all put to the ultimate test in a life and death struggle against man's most modern weapons... and most primitive fears.

• Documentary