Built up on a structure of an international noir thriller, Echo starts as from a devastating terrorist assault on the Paris subway. The event shakes all of France as a nation and is a start to an obsessive personal hunt across the oceans that leads spectators to the mountains on the Canadian-USA borders. On one hand, on the run, is the mysterious mercenary Orpheus. On the other, hard on his trail, is the charismatic chief-investigator of the anti-terrorism division in France. The police officer ...