Laura Sinclair and her son, Jason, witness aliens descend to Earth. The extraterrestrials endeavour to form a symbiotic relationship with humankind, and choose Jason as a genetic link in a bizarre trial involving the mystical impregnation of human females with hybrid embryos.
What follows tests Laura’s resolve to the core. Caught in a relentless web of frightening new technologies and alien mystery, but spurred by the undying love of her son, Laura gains a strength of character she never thought possible as she crosses swords with a Major General of the Australian Defence Force and the enigmatic head of Milijun, a reclusive research facility in the Outback.
All she has to do is save herself, Jason, and several pregnant women from the scheming plans of man and alien alike …