The scientist awoke on a cold concrete floor. The door creaked open. A man stepped in, his coat long, his eyes colder.
“You could’ve had comfort,” he said. “But you chose the hard way.”
Donald never wanted comfort. He wanted to help people — and now his invention, Nitrox 21, is being twisted into a tool of oppression.
In the heart of a collapsing Warsaw, Eliza and Tomasz risk everything to rescue him. Disguises, infiltration, silent footsteps through drone-patrolled ruins — all to reach the man who holds the key to humanity’s last hope.
But rescuing Donald is only the beginning.
As the resistance grows and the regime tightens its grip, one question will Nitrox 21 save the world — or destroy what’s left of it?
**Nitrox 21 – Part 3: Special Mission** is a gripping dystopian sci-fi thriller about loyalty, sacrifice, and the power of one dangerous idea.