We are the swarm.
We burned a path of annihilation across the stars.
And then, we vanished.
Four years ago we faded into the shadows.
We thrived.
We evolved.
Now, the time has come for us to step back ... into ... the light.
Now, worlds will tremble once again.
Empires will fall.
Alliances will shatter.
We are the swarm.
But we are becoming ... much... much more.
For the final metamorphasis, has only just begun.

===From the Zerg CG of StarCraftII===