A Texan traveling across the wild West bringing the news of the world to local townspeople, agrees to help rescue a young girl who was kidnapped.
A retired sheriff and his wife, grieving over the death of their son, set out to find their only grandson.
When a virus threatens to turn the now earth-dwelling friendly alien hybrids against humans, Captain Rose Corley must lead a team of elite mercenaries on a mission to the alien world in order to save what's left of humanity.