The interstellar Commonwealth, which united hundreds of planets inhabited by people, expanded and flourished for many years, but in an instant was on the verge of death. Primes - strangers who arrived from Alpha Dyson captured dozens of worlds using weapons of incredible power. However, this is not the only danger threatening humanity. Star Wanderer, a mysterious alien whose existence has long been believed by almost no one, has been plotting for centuries and is now destroying the Commonwealth from within.