Lockdown is a television series appearing on the National Geographic Channel.
The series is an educational look into prisons and jails in the United States, presented in a documentary format.
Lockdown is known in some regions as America's Hardest Prisons.
Reruns of the series currently air on The Justice Network.
Ex-con Larry Lawton was contacted to be a consultant for the show, but didn't accept it because the show didn't allow him to "discuss what really goes on in the prison system.