Season 1 | Episode 4
Oliver still hasn’t figured out how to get back in Laurel’s good graces, but a late night bonding session with Thea gives him the inspiration he needs. Looking into a suspicious murder case, Oliver realizes an innocent man, Peter Declan, was framed by one of the targets on his list. As Arrow, he asks Laurel to help prove Declan’s innocence. Meanwhile, Walter asks one of his employees, Felicity Smoak, to look into a $2.6 million withdrawal that Moira made without his knowledge.
Season 1 | Episode 1 After a violent shipwreck, billionaire playboy Oliver Queen was missing and presumed dead for five years before being discovered alive on a remote island in the Pacific. Back in Starling City, Oliver slowly reconnects with those closest to him. Oliver has brought back many new skills from his time on the island and manages to secretly create the persona of Arrow to right the wrongs of his family and fight the ills of society. As Arrow, Oliver will atone for the past sins of his family while he searches for the personal redemption he needs.
Season 1 | Episode 2 Oliver heads to the courthouse to get his death certificate repealed and is pleasantly surprised to run into Laurel, who is there prosecuting Martin Somers, a criminal with ties to the Chinese Triad. Oliver recognizes Martin's name from his father's book and sets his sights on taking him down. Martin orders the Triad to "take care of" Laurel so they send their top mercenary - China White - after her, an act that culminates in a battle between Arrow and China White. Meanwhile, Moira and Walter ask Oliver to take over the company.
Season 1 | Episode 3 Oliver is surprised when someone shoots and kills one of his targets. As his plan is to bring people to justice vs. outright killing them, Oliver doesn't appreciate the help and searches for the gunman. He soon learns that the man, Deadshot, is taking out businessmen who are scheduled to bid at an auction on an energy company and Walter is one of the bidders. Realizing he can't protect his family and stop Deadshot at the same time, Oliver enlists Detective Lance's help, but his plan has dire consequences. Meanwhile, Laurel and Tommy get caught in an awkward situation with Oliver.
Season 1 | Episode 5 After Detective Lance arrests Oliver for murder, Oliver tells Moira the only lawyer he'll allow to represent him is Laurel. Laurel takes the case which puts her at odds with her father. Oliver offers to take a polygraph in front Detective Lance but things get tense when Lance asks him if anyone else was on the island with him. Oliver flashes back to when he got his first scar, courtesy of Deathstroke.
Season 1 | Episode 6 A gang of bank robbers, dubbed The Royal Flush Gang, hits a local bank and seriously wounds an off-duty police officer during a heist. Diggle tells Oliver he needs to deviate from his father's list and start helping the citizens of Starling City. Meanwhile, Tommy asks Thea for relationship advice, but things get awkward when she realizes he was asking about Laurel. Moira confronts Oliver about all of his recent disappearances in the middle of family functions.
Season 1 | Episode 7 Oliver encounters a mysterious woman, Helena Bertinelli, daughter of mob boss Frank Bertinelli, who he can finally be himself with, but he soon comes to realize she's hiding dangerous secrets of her own. Helena is on her own personal mission of vengeance and Oliver is caught in the middle. Meanwhile, Tommy is blindsided by an unfortunate turn of events and turns to Laurel for support.
Season 1 | Episode 8 As Oliver and Helena grow closer, Oliver trains her to be his ally, complete with showing her how to use a crossbow. Diggle disapproves of Oliver sharing his secret with Helena as he's not sure she can be trusted, but Oliver refuses to listen to his concerns. Helena's quest for revenge proves to be too strong for Oliver to handle after she kills the head of the Triad and all hell breaks loose.
Season 1 | Episode 9 Oliver discovers that after he and his father went missing, Moira and Thea stopped celebrating Christmas. Determined to make up for lost time and restore a sense of normalcy to the Queen household, Oliver decides to throw the family a Christmas party. Meanwhile, Tommy asks Laurel to spend Christmas with him but she points out that Christmas was also her sister Sara's birthday and she needs to be with her father. Tommy suggests changing things up might be the best way for everyone to heal but Laurel isn't sure her father is ready for that. Meanwhile, Diggle tells Oliver someone is murdering the people on his father's list with arrows, which sends Oliver off to face his toughest adversary yet.
Season 1 | Episode 10 Oliver’s confidence is shaken after being beaten by the Dark Archer and he takes a break from being Arrow. However, when Laurel calls Arrow for help investigating a firefighter’s suspicious death, he reluctantly agrees but his hesitance while fighting almost costs him his life. Meanwhile, Tommy throws a benefit for the firefighters and Thea tries to lift Moira out of her depressive state.
Season 1 | Episode 11 The next person on Arrow's list is Diggle's commanding officer and mentor from Afghanistan, Ted Gaynor. Oliver suspects Ted is responsible for recent armoured truck robberies, but Diggle defends Ted and takes a job at Ted's security company to keep an eye on him. Oliver decides to make a move on Ted, which puts him at odds with Diggle. Meanwhile, Thea suspects that Moira is having an affair with Malcom. Tommy and Laurel have an awkward dinner with Malcom.
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.