Air Force general and a brilliant husband‑and‑wife scientific team, Tom and Linda on the brink of a breakthrough. After “nine hundred and ninety-nine mice die” and the thousandth survives due to a serendipitous polarity reversal by Tom, the Door technology is born. But global rivals, political sabotage, and assassination attempts threaten the program at every turn. When the first human transports succeed, the Joe , Lydia and Darian are kidnapped by foreign powers desperate to steal the technology. A catastrophic rocket attack nearly ends the mission, but the team’s courage keeps the dream alive. As Doors are deployed to the Moon, Mars, and beyond, humanity takes its first true step into the solar system and the pioneers, who expected to die, discover their future will be spent as explores of the Universe.