In the future as Bova here imagines it, Earth is an ecological nightmare, and humanity may well go the way of the dinosaurs. But overhead orbits salvation. A vast metallic island in space, the Trikon station conducts genetic research too risky to be done on earth—research that could save the planet.

Yet Commander Dan Tighe discovers that the Trikon's major project is espionage. Its international crew is split into warring factions; its scientists—consumed by greed, lust, and drugs—run the lab for their own gain. Murder, intrigue, and romantic jealousy threaten to sabotage the station's crucial work.

Only Commander Tighe can save the Trikon—and only Trikon can save the earth.