7 years on from the original Fortress movie, Brennick and his family are still on the run. Finally, they give in, and surrender, only to find themselves imprisoned in a new, more sophisticated fortress prison in outer space. But Brennick's not a man to give in easily, and with a 10 year old son waiting for him back on earth, he's going to pack some serious assault on the evil corporation.

The International Space Station is now a prison - the ultimate black site. No one's getting out. And no one knows it's there. But when the imprisoned terrorists take over the Station and turn it into a missile aimed at Moscow, only a shuttle pilot and a rookie doctor can stop them. Their task is complicated by a rogue CIA agent (Scott Adkins) who has his own plans for the station and the terrorists within.

Pandy and Retro awaken naked on Earth with no recollection of their past. They embark on a crime spree in search of food and clothing, but are captured by authorities and sent to the infamous lunar penitentiary named Dead Leaves.