Hawaii Five-0 season 10 episode 17
Episode title: He kohu puahiohio i ka ho'olele i ka lepo i luna (Like a Whirlwind, Whirling the Dust Upward)
Harry Langford helps Five-0 investigate a series of murders that follow the plot of a fabled unpublished crime novel from the 1920s. Also, Tani and Junior's friendship takes a meaningful new turn.
