Five-0 races to Mexico where Chin puts his life on the line after his niece Sara (Londyn Silzer) is kidnapped, on HAWAII FIVE-0. Duane "Dog" Chapman returns as himself and George Takei returns as Chin’s Uncle Choi.
While Danny chaperones Grace’s winter formal, terrorists seize the venue and hold everyone hostage in order to kidnap a diplomat’s son.
When working a murder case involving the illegal practice of shark finning, Five-0 uncovers the possibility that a former Nazi war criminal may be hiding out in an old leprosy colony in Hawaii.