(Not Forgotten) A neurosurgeon is assassinated just before performing a surgery, and the investigation also reveals the truth behind the disappearance of four reform school boys over 40 years ago. McGarrett's beloved Mercury Marquis is stolen by an unlikely culprit.
Elenco: Alex O'Loughlin , Scott Caan , Chi McBride , Grace Park , Daniel Dae Kim , Masi Oka , Jorge Garcia , Ian Anthony Dale , Meaghan Rath , Beulah Koale , Dennis Chun , Kimee Balmilero , Taylor Wily , Michelle Borth , Katrina Law .