After returning from the Undersea Kingdom, young Howard Lovecraft is visited by a familiar stranger claiming to be his uncle, they must then travel to Antarctica and enlist the help of a few old friends in order to stop the Necronomicon's impending madness preventing the awakening of Cthulhu.
Cthulhu (Fictitious character) -- Fiction.
Lovecraft, H. P. (Howard Phillips), 1890-1937. Short stories. Selections.
Monsters -- Fiction.
Necronomicon (Imaginary book) -- Fiction.
Hamill, Mark, voice actor.
Plummer, Christopher, voice actor.
Shout! Factory (Firm), film distributor.
Wolfhard, Finn, 2002- voice actor.