A chance discovery on the jungle world of Hyperion leads Alliance scientists on a path to creating a permanent spacebridge to the distant Orion Nebula. In a matter of days, great fleets of military and civilian ships depart for the single greatest expedition since the colonisation of Alpha Centauri. Into this great adventure travel two heroes of the war, retired Marines Spartan and Teresa Morato, and their son Jack. Now senior members of an elite private military corporation, they are at the heart of the Alliance bold new plan. Their discovery of buried machines, as well as derelict spacecraft in the first system encountered triggers events that will see the Alliance embroiled in a military conflict like no other. Discoveries of a dead people who have been wiped out by an unknown enemy sends a shudder through the many worlds of the Alliance.