Ua Hiki Mai Kapalena Pau (Until the End is Near)

Agent Kaye's information has helped Five-0 narrow in on capturing Wo-Fat, but before they can act Danny becomes exposed to a lethal chemical. The investigation into this neurological agent takes precedence as Five-0 must prevent a bio-terrorism threat to the island.

Season 1 | Episode 23

Alex O'Loughlin

as Steve McGarrett

Daniel Dae Kim

as Chin Ho Kelly

Grace Park

as Kono Kalakaua

Scott Caan

as Danny "Danno" Williams