Enter a realm of senses that we can only marvel at. In whick seek and destroy experts detect even the faintest clues and where a breath, a footstep, a heart-beat, even an electrical pulse is enough to sign a death warrant. See how hammerhead sharks use their heads like metal detectors to locate buried fish by the minute electrical fields they generate and how the star-nosed mole, probably the most bizarre looking predator of all, has the greatest sense of touch in the animal kingdom. Our familiar world grows alien as we discover how predators really seek out their prey.