A girl is abducted in broad daylight in a seemingly safe neighbourhood, but when her father's alibi checks out, the police must look elsewhere for answers.
The team deal with a case of déjà-vu when survivors of a high school massacre are targeted by a new murderer with a similar killing style.
The cyber team investigate after the dispatch software of a car service is hacked in order to target specific passengers.
McGarrett's first date with Lynn turns deadly when they are targeted by a mob boss; Chin and the team race to prevent a murder.
Mac and the team are led to hidden treasure and an assassination plot when a body is found in New York harbour.
