Technology is the way of the future and terrorists have come up with a wonderful new method – hiding the trigger for a bomb inside their bodies so if they are killed, the bomb goes off. Henriksen, an explosives expert and a team of specially trained scientists are sent to deactivate a trigger for a nuclear weapon that will vaporize Munich and contaminate Western Europe, the trigger is of course inside a loopy terrorist’s body. To get it, the team are shrunk down and injected into the terrorist. Then begins a fantastic voyage as they search for the microchip detonator. The scientists take an internal journey through the wonders of the human body, but also must fight off a constant attack from anti-bodies, white corpuscles and viruses. Walking in another man’s footsteps is one thing; to swim in his blood is something else.