Set in the late 1980s, school is out for the summer, and a sun-drenched season of firsts beckons the counselors at Camp Clearwater, a seemingly idyllic Midwestern summer camp, including first loves, first kisses – and first kills. Clearwater’s dark, ancient mythology awakens, and what was supposed to be a summer of fun soon turns into one of unforgettable scares and evil at every turn.

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.