The Thalan are a civilization we know very little about. We don't know how they got hyper drive. We don't know where they came from. Their home world isn't their home world based on what we've seen. It's a colony. Where their real home world is remains a mystery to us. Whatever their long-term agenda is, in the near-term, they rank up amongst the 10 major civilizations in our galaxy. This shocking discovery gave the Thalans no choice but to travel to our universe, discern the source of the destruction, and stop humanity from destroying the omniverse.