The Warning (The Warning #1)

An enormous machine slowly materializes in a major West Coast city. Who sent it"”and why"”is a mystery, understood only by the malevolent beings gliding silently toward Earth through the inky vastness of space. In response, a multinational combat brigade called Gladiator Two-Six is deployed. Outfitted with next-generation military science and weapons, they're tasked with stopping any extraterrestrial threat that emerges.