FRANKIE: troubled teen from Valley Stream, NY. Tae Kwan Do brown belt, wanna-be NASA astronaut, save the whales. Parents split, mom set to remarry.
HAHN: Humanoid Android for Hyperspace Navigation), intergalactic Greenpeace scout come to slap a protective sticker on Earth to save it from space developers.
He Who Trails In Fire Across The Starry Heavens: (Sky-Fire-Trail): born on Manhattan about a thousand years ago.

Hahn is ending his survey when he is attacked by another scout ship. To avoid crashing on Lower Manhattan, he zips back to Sky-Fire-Trail's time - at the moment of his birth. In the aftermath, these three collide repeatedly in time and space, each with his/her own agenda - and thereby hangs the tale.