First Look: Costumes And Convicts On Hawaii Five-0

Scott Caan as Danny

1. Scott Caan as Danny "Danno" Williams

It's Halloween in O'ahu, and Five-0 must track down a serial killer inspired by Frankenstein. Also, Jerry calls Five-0 for help when an armed gang raids a blood bank, and Danny must track down Grace who lied and snuck out to a Halloween party, on "Na Pilikua Nui."
Scott Caan as Danny

2. Scott Caan as Danny "Danno" Williams

"Na Pilikua Nui (Monsters)" (Season 6, Episode 6)
Scott Caan as Danny

3. Scott Caan as Danny "Danno" Williams and Teilor Grubbs as Grace Williams

"Na Pilikua Nui (Monsters)" (Season 6, Episode 6)
Scott Caan as Danny

4. Scott Caan as Danny "Danno" Williams and Teilor Grubbs as Grace Williams

"Na Pilikua Nui (Monsters)" (Season 6, Episode 6)
Scott Caan as Danny

5. Scott Caan as Danny "Danno" Williams and Teilor Grubbs as Grace Williams

"Na Pilikua Nui (Monsters)" (Season 6, Episode 6)
Scott Caan as Danny

6. Scott Caan as Danny "Danno" Williams and Zach Sulzbach as Charlie Edwards

"Na Pilikua Nui (Monsters)" (Season 6, Episode 6)
Jorge Garcia as Jerry Ortega

7. Jorge Garcia as Jerry Ortega

"Na Pilikua Nui (Monsters)" (Season 6, Episode 6)
Jorge Garcia as Jerry Ortega

8. Jorge Garcia as Jerry Ortega

"Na Pilikua Nui (Monsters)" (Season 6, Episode 6)