When radio astronomer Dr. Clara König receives a mysterious signal from space, she doesn't suspect that she has established first contact with a parallel reality. The signal isn't extraterrestrial—it comes from humans from another dimension whose world has been destroyed and who desperately seek allies.
But a secret organization, the "Watchers," has prevented such contacts for decades. Their leader, Director Voss, is willing to do anything to protect humanity from the "danger" of interdimensional communication. When Clara works with historian Dr. Webb and secret agent Sarah Chen to reveal the truth, a race against time begins.
The discovery leads to a UN decision: Should humanity establish contact with other realities? Clara's choice changes not only Earth's fate, but that of the entire multiverse. Because her parallel world isn't the only one—millions of realities are waiting out there to be discovered.
But interdimensional power also attracts interdimensional enemies. The Conquistadores, an aggressive version of humanity, want to subjugate all other realities. Clara must forge an alliance of different worlds to save not only her own reality, but preserve existence itself.