FortressReEntry, directed by Geoff Murphy, is the sequel to the 1992 film Fortress. In the film, the principal actor Christopher Lambert reprises his role as John Henry Brennick, still on the run from the MenTel Corporation. Lambert was the only original actor from Fortress.
John is then knocked out and captured. He wakes up in a room with a disembodied voice telling him that he is in prison again and has been sentenced to death. He has been implanted with a behavior modification device which causes headaches of various intensity when prisoners enter prohibited areas. He also finds one of the men who visited him, a former MenTel vice president, who is now braindamaged because of an improperly planted device. Another of Johns visitors, a former soldier, is also in the jail and friends with one of the guards.Brennick starts making enemies almost immediately. A video of Director Teller welcomes the new prisoners. He shows them a female prisoner receiving her death sentence, being sucked out into space through an airlock. The video then shows the prisoners that their new prison is actually a space station orbiting the Earth which is used to generate power via a solar array. ........
Source: Wikipedia