The Jericho Mile

The Jericho Mile is a 1979 Emmy Awardwinning USA TV crime film, directed by Michael Mann. The film won five awards, including three Emmy Awards. The story is set at Folsom Prison, where the movie was filmed on location in the prison itself amongst the prison population.

Stiles manages to swing a deal with the head of the white gang, Dr. D, Brian Dennehy, to get a conjugal visit with his wife three months early so he can see his new baby. Instead of Stiles wife showing up, one of Dr. Ds drug mules is put in her place so that Stiles can bring in some drugs. Stiles refuses to participate and goes back to his cell resulting in the mule getting arrested.Stiles tells Murphy what happened and Murphy convinces Stiles to go into isolation. Stiles is killed after the prisoners are let out however. The conflicts continue with Murphy and the white gang, and the black gang and as a result, the white gang boycotts the building of the track and forms a picket line that the other gangs refuse to cross. ........

Source: Wikipedia