Convicts on a chain gang sniff formaldehyde fumes to get high. They attempt a prison break and are shot down by the guards. After being buried, they rise from the dead, killing all in their path with shovels and hoes.
Director
John Hayes
Marland Proctor
Paul Johnson
John Dennis
Jablonski
Virgil Frye
Braddock
Carmen Filpi
Nolan
John Dullaghan
Sgt. Burns
Jerome Guardino
Gravedigger
US
