Cloudburst

An experimental weather machine, a transport ship filled with hundreds of
families, and a troop of hired killers converge on a derelict colony world only
to discover it's not abandoned.
Lauren Moore is a brilliant young scientist and the creator of Cloudburst: a
massive satellite designed to control rainfall on dry planets. Onboard a new
colony ship carrying several hundred families, soldiers and cryogenically stored
animal embryos, Lauren has been commissioned to use Cloudburst to terraform the
planet. What Lauren doesn't know is the soldiers escorting the ship have been
sent to remove the existing colonists to make room for the new ones. The
corporate term is eviction. The human term is mass murder. The only man who can
help her is a mysterious drifter who some say is only a myth, an invention of
desert nomads and lunatics.