Years ago, motorcycle stuntman Johnny Blaze sold his soul to save the life of a loved one. Now, he transforms into a fiery, avenging agent of justice at night wherever evil roams. As the only one who can walk in both worlds, Johnny is charged by Mephistopheles himself to destroy Blackheart, a demon that wants to overthrow Mephistopheles and create a worse hell than the one that currently exists.