Five-0 is in search of a serial killer who may be a modern-day Dr. Frankenstein, while also dealing with a hostage situation after a blood bank robbery. Meanwhile, Danny is frustrated after Grace goes to a Halloween party behind his back.
Stars: Alex O'Loughlin, Scott Caan, Daniel Dae Kim
Director(s): Joe Dante
Writer(s): Roberto Orci, Alex Kurtzman, Peter M. Lenkov