SIRIUS 6B, Year 2078. On a distant mining planet ravaged by a decade of war, scientists have created the perfect weapon: a blade-wielding, self-replicating race of killing devices known as Screamers designed for one purpose only -- to hunt down and destroy all enemy life forms.
An investigator seeking the cause of an airline disaster discovers the involvement of an organisation of time travellers from a future Earth irreparably polluted who seek to rejuvenate the human race from those about to die in the past. Based on a novel by John Varley.
Cassie, a psych student, was kidnapped and traumatized as a child by a disturbed person. To exorcise her demons and to finish her thesis, she decides on an experiment in isolation, working at a secluded watch tower as a fire lookout. But once she's alone, strange things start happening. Or is she just paranoid? Cassie is terrified that her past may be coming back to haunt her.
