Blood hunters

In the Mexican jungle a team of scientists explore the world's deepest lake. What they discover could wipe out mankind. In England, Joe McDonald's father is arrested for the murder of a fellow scientist and Joe is determined to prove his innocence. But across town more people are being attacked - in their homes, in the woods, by the canal. Was something smuggled back from Mexico? One thing is certain - there are predators out there. Hungry, intelligent and unstoppable predators.