S2, EP22 "Dies Irae"
When a figure from Tennant's CIA past reemerges, the NCIS team seeks help from the most unlikely place to catch a killer who threatens to destroy everything Tennant has built.
S2, EP21 "Past Due"
The discovery of a dead former MI6 agent uncovers secrets from Tennant's past, forcing her to go to extreme lengths to track down the responsible party.
S2, EP20 "Nightwatch Two"
When Lucy receives a strange call on night watch from a man admitting to murder, the NCIS team sets out to find him.
S2, EP19 "Cabin Fever"
After the mysterious death of an astronaut in a highly sensitive Mars simulation, the NCIS team must send Ernie into the habitat to investigate alone.
S2, EP18 "Bread Crumbs"
When Tennant interrogates a suspect during his helicopter transfer and the helicopter crashes, she must utilize her skills to save herself and the other passengers.
S2, EP17 "Money Honey"
Milius returns to Hawai'i as the NCIS team pursues a dangerous high-value U.S. Government target with the help of a unique informant; Tennant and Daniel deal with Alex's acceptance into the Naval Academy.
S2, EP16 "Family Ties"
When Navy residents discover their vehicles were burglarized, the team connects it to a series of peculiar crimes and tracks down an unlikely bandit; Whistler struggles with an uncooperative confidential informant; Alex weighs his college options.
S2, EP15 "Good Samaritan"
When a Navy deserter accidentally comes out of hiding, his family becomes a target that drives the NCIS team and Charlie 1 to investigate who is after them; Lucy surprises the team by returning to Hawaii early.
S2, EP13 "Misplaced Targets"
Following a close call at a meth lab explosion, the NCIS team learns Kai is being targeted by his old friend-turned-criminal and must take him down; Lucy gets her first big case aboard her aircraft carrier.
S2, EP12 "Shields Up"
When an elite special forces Marine captain is murdered, the NCIS team finds a suspect in a really unusual place.
S2, EP11 "Rising Sun"
Agent Pike is ambushed while working under cover with a local Japanese crime family; Kai goes deeper into his investigation regarding an old friend turned criminal.
S2, EP10 "Deep Fake"
Tennant, Jimmy Palmer and Sam Hanna find themselves captured with a woman who claims to be a CIA agent demanding intel from the team.
S2, EP9 "Desperate Measures"
When Cmdr. Chase is abducted from her home by an Army Ranger accused of murder, the NCIS team must act quickly to find her and the suspect.
S2, EP8 "Curtain Call"
When a naval officer is murdered while moonlighting in community theater, the NCIS team recruits a familiar face to help lead them to a ruthless international killer; Kai enlists Whistler to open an investigation into an old friend turned criminal.
S2, EP7 "Vanishing Act"
When the mother of a young boy goes missing, the NCIS team sets out to find her and learns they aren't the only ones searching for her.
S2, EP6 "Changing Tides"
When a Marine corporal dies in a tide pool after being exposed to fentanyl, the NCIS team must quickly find the source of the drugs; Alex talks to his parents about taking a gap year; Ernie reveals personal news to Lucy.
S2, EP5 "Sudden Death"
The NCIS team investigates the death of a Navy sailor and goes head-to-head with a ruthless local criminal organization; Lucy looks for a new apartment.
S2, EP4 "Primal Fear"
When a Navy sailor washes up dead, the NCIS team brings special agent Pike to unmask the mystery and catch a possible serial killer on the island; Tennant meets Alex's new girlfriend.
S2, EP3 "Stolen Valor"
The NCIS team suspect foul play when they investigate a fatal car crash involving a Navy officer who turns out to be an imposter; Whistler finds herself in danger when she goes under cover to learn the truth behind the accident.
S2, EP2 "Blind Curves"
The NCIS team investigates the world of illegal street racing after a Marine staff sergeant's body is discovered in a junkyard; Tennant is concerned Alex is hiding something from her; Whistler is anxious about introducing Lucy to her co-workers.