In the year 2035, Earth is invaded by aliens.
They do not come in large spaceships, and do not flatten skyscrapers with their awe-inspiring weapons of destruction. They do not want minerals or fealty or slaves, and there are no broadcasted demands for surrender. They come in a large and seething black cloud that empties the entirety of New York in a single weekend. By the next, four cities have gone dark, one of them Ottawa, and another, Washington DC.
The news broadcasts conflicting information. They're shapeshifters, insists one group, hiding as ordinary objects and ambushing. No, they're highly advanced AI with perfect control of technology, repurposing everything they come into contact with. No, they control minds, they turn people into puppets and pilot them around. No, they are made from the dead, and all of humanity is being forcibly inducted into an alien hive mind. The scariest broadcasts are the ones that say they're all true. But that can't be possible, can it? No one species could possibly branch out so much, do so much. That's impossible, surely.
It isn't.
Earth has been invaded by aliens, and humanity learns very quickly to fear the species known as the Typhon.