Prison Break Season 4 Episode 03

An engineer (Wentworth Miller) installs himself in a prison he helped design, in order to help his brother (Dominic Purcell), a death-row inmate who insists he did not commit the crime for which he has been sentenced to die and help him escape. Written by IMDb Editors

Lincoln Burrows is on death row for the murder of the vice president's brother. He insists he's innocent and only his brother Michael Scofield believes him. As an engineer who helped design the prison where Lincoln is being held, Michael takes drastic measures to help his brother. He gets himself arrested and sent to the same prison so that with his knowledge of the building the two of them can escape together. However, while inside, Michael discovers a massive conspiracy that is determined to see Lincoln's sentence carried out. Breaking out will be more difficult than he thought, but he's still going to try. Written by rmlohner