Season 7 | Episode 4
Oliver makes a drastic move in his quest to find Diaz. Like her husband, Felicity pulls out all the stops to get to Diaz. Meanwhile, when arsonists target Rene’s community center, injuring Zoe in the process, the mysterious new Green Arrow swoops in to help save the day. Faced with pressure from the mayor to capture the vigilante, Dinah must decide if following the rules at all costs is the best plan to keep the city safe.
Season 7 | Episode 1 Following Oliver’s shocking decision to turn himself over to the FBI and reveal his identity as the Green Arrow to the public, Oliver has spent the past five months in Slabside Maximum Security Prison. Determined to keep a low profile to shorten his sentence for the sake of his family, Oliver is tested when he runs into old foes. Meanwhile, Diggle and Dinah have taken on new jobs and left their costumes behind but not everyone is following suit. With her focus on William, Felicity tries to start over but when someone from her past resurfaces, things become complicated.
Season 7 | Episode 2 In order to track down Diaz from inside prison, Oliver realizes that will require aligning with an old enemy. Meanwhile, in Star City, Felicity’s attempts to root out Diaz are thwarted by Diggle, whose allegiance to ARGUS now requires him to keep civilians like her on the outs. Realizing that she can no longer rely on her old team or old methods, a clear-eyed Felicity resolves to find a new way to go after Diaz.
Season 7 | Episode 3 Still in prison, Oliver faces his biggest challenge yet. Meanwhile, Felicity gets an intriguing offer, and Diggle asks Curtis to go undercover for ARGUS.
Season 7 | Episode 5 Felicity learns something new about Oliver that shocks her. Meanwhile, Diggle asks Curtis to go undercover for ARGUS. Dinah works with an unlikely ally.
Season 7 | Episode 6 Slabside becomes even more dangerous after a guard is murdered and everyone is a suspect. Felicity enlists help from a surprising source in her pursuit of Diaz, and Laurel flexes her muscles as the District Attorney.
Season 7 | Episode 7 Oliver makes a choice that will affect his entire life, as well as the lives of everyone he cares about.
Season 7 | Episode 8 Felicity stands by her recent decisions regarding her family. Meanwhile, Diggle and Lyla continue to look into the Dante painting that Curtis found.
Season 7 | Episode 9 With Oliver and Barry still stuck in the other’s bodies, the two get a lead on John Deegan and head to Gotham City with Supergirl to figure out why their reality has changed. While there, they meet the mysterious Kate Kane who provides them with information that leads the group to Arkham Asylum. The crossover starts on The Flash S05E09 Elseworlds (I) and concludes on Supergirl S04E09 Elseworlds (III).
Season 7 | Episode 10 Oliver is ready to get back to work with the SCPD and to focus on his marriage with Felicity. However, when Dinah tasks Oliver with tracking the new Green Arrow things take a surprising turn. Meanwhile, Diggle and Lyla must answer to ARGUS about Diaz.
Season 7 | Episode 11 The past comes back to haunt both Oliver and Laurel. Curtis is upset when he discovers that Diggle and Lyla have restarted The Ghost Initiative with Diaz, China White, Kane Wolfman and Carrie Cutter.
Elsa, Anna, Kristoff and Olaf head far into the forest to learn the truth about an ancient mystery of their kingdom.
Season 1 | Episode 1 Steve McGarrett is summoned home to the island of Honolulu to bury his father after he is murdered by a madman. Governor Jameson wants Steve to head up a new elite police unit and she will give him full authority to get the job done. Initially he turns down the job, but when he meets the man in charge of the unit, he changes his mind.
Season 1 | Episode 2 Following the abduction of a former NSA cyberterrorism expert, the team must rescue the man and prevent a breach of national security.
Season 1 | Episode 4 A violent convict escapes from prison and kidnaps a young couple on vacation; McGarrett's estranged sister comes to town.
Season 1 | Episode 3 An escalating gang war spills into the stands of a high-school football game, killing several people; an unlikely partnership arises.
Season 1 | Episode 5 When the daughter of the U.S. ambassador to the Philippines is found dead, the governor tasks Five-0 with finding her abducted sister.
Season 1 | Episode 7 When a Navy SEAL, who's on the run for a murder he swears he didn't commit, takes hostages and safe haven aboard the U.S.S. Missouri memorial battleship, McGarrett must use every SEAL skill in his arsenal to diffuse the situation.
Season 1 | Episode 6 When the CEO of a successful surf company is murdered, Kono revisits her past; Five-0 is thrown into the varied but interconnected worlds of North Shore surfing.
Season 1 | Episode 8 When Danny's ex-partner is found dead at a Hawaiian luau the Five-0 team's investigation leads them to some dirty cops and a powerful cocaine cartel.
Season 1 | Episode 9 When a member of the security detail for an upcoming Aid Summit is murdered before he can reveal the details of an assassination plot, Five-0 is brought in to investigate the murder and protect the target, a ruthless dictator.
Season 1 | Episode 10 Five-0 is baffled when a highly skilled ring of thieves pulls off a heist of an armored car, killing two security guards but leaving the money behind. Their only lead in the case requires Danny to reluctantly ask his ex-wife for a favor.
Season 1 | Episode 12 It's Christmas in Hawaii, but instead of celebrating, Five-0 is negotiating a hostage situation when the man who killed McGarrett's father resurfaces. The murderer, Victor Hesse, threatens to detonate an explosive that he's strapped to Chin Ho's chest.
Season 1 | Episode 11 The wife of a newlywed couple is found disoriented with amnesia in Kahana State Park with the husband currently missing. The mother of the husband suspects the wife for staging the whole thing although Five-0 & M.E. Bergman may have discovered a potential newlywed serial killer.
Season 1 | Episode 13 McGarrett discovers new clues in his mother's murder when his sister is kidnapped.
Season 1 | Episode 15 Five-0 struggles to stay a step ahead of a major tsunami that has the island evacuating its shores as they investigate the disappearance of the head of the Tsunami Warning Center.
Season 1 | Episode 14 After a high-speed chase, the team makes a gruesome discovery; Chin Ho and his ex-fiancee are awkwardly reunited.
Season 1 | Episode 16 When the sole witness in a high-profile murder case disappears, Five-0 must head into the jungle to locate and protect her from assassins who are closing in fast.
Season 1 | Episode 18 While Five-0 races to stop a mad bomber before he kills again, Danny gets an unexpected visit from his little brother, Matt, a fun-loving, Wall Street broker. The family reunion is cut short, however, when Danny discovers the real reason that Matt is in Hawaii.
Season 1 | Episode 17 Five-0 is first on the scene when a pirate attack turns an afternoon pleasure cruise into a kidnap-and-ransom nightmare for a group of wealthy spring breakers.
Season 1 | Episode 19 Five-0 combs a convention to find the killer of a sci-fi fan who was thrown out of a high-rise window. A CIA agent who's interested in the Yakuza that killed McGarrett's parents shows up in town to meet with Steve.
Season 1 | Episode 21 When a crime lord moves against the family of an undercover NYPD detective who infiltrated his organization, it's up to Five-0 to stop the policeman from exacting revenge.