Hawaii Five-0 (2010)

S05E06 Hoʻomāʻike (Unmasked)

On Halloween night, the Five-0 team races against time to apprehend a serial killer who is emulating the gruesome killings from a notorious cult horror movie. At the same time, McGarrett faces a personal crisis as he works to rescue Jerry, who has been abducted by the counterfeiters he was investigating.