After being involuntarily discharged from the U.S. Special Forces, James Harper decides to support his family by joining a private contracting organization alongside his best friend and under the command of a fellow veteran. Overseas on a covert mission, Harper must evade those trying to kill him while making his way back home.

Bored and unhappy as the Lord of Hell, Lucifer Morningstar abandoned his throne and retired to Los Angeles, where he has teamed up with LAPD detective Chloe Decker to take down criminals. But the longer he's away from the underworld, the greater the threat that the worst of humanity could escape.

After his wife is murdered, Innis decides to take the law into his own hands. But as he comes closer to catching the man that killed his wife, Innis discovers the dark side of justice and finds the will to never look back.