Episodes
Episode: 3x01 | Airdate: Sep 24, 2012
Following McGarrett's mother's surprise return and Chin's gut-wrenching decision in last season's finale cliffhanger, the team is determined to track down Wo Fat and Delano for killing an important member of their family.
Episode: 3x02 | Airdate: Oct 1, 2012
McGarrett asks Catherine for her help in locating his mother and the team calls on August March for his assistance when an art heist turns deadly.
Episode: 3x03 | Airdate: Oct 8, 2012
McGarrett and Danny's relaxing day at sea takes a deadly turn when their boat is hijacked and they are left to die in the middle of the ocean.
Episode: 3x04 | Airdate: Oct 15, 2012
Doris McGarrett pays an unexpected visit to her son while the team investigates the death of a polo player who literally loses his head.
Episode: 3x05 | Airdate: Nov 5, 2012
It's Halloween in Hawaii and the clock is ticking when a grisly murder leads the team to a ritualistic killing, and evidence suggests that the killer will soon strike again.
Episode: 3x06 | Airdate: Nov 12, 2012
When Danny is forced to remain completely still while bomb technicians disarm a bomb that he has accidentally activated, McGarrett distracts him by getting his partner to tell the story about his toughest and most emotional case from his days as a cop in New Jersey.
Episode: 3x07 | Airdate: Nov 19, 2012
While the team investigates the murder of a young computer hacker, McGarrett tries to stage a long-needed reunion between his mother and his sister.
Episode: 3x08 | Airdate: Nov 26, 2012
McGarrett plays cat and mouse with a smart and seductive therapist he believes murdered her patient. Meanwhile, Catherine must hunt down one of Doris's old targets who is now seeking revenge.
Episode: 3x09 | Airdate: Dec 3, 2012
Max and his crush get put in harm's way when a botched bank robbery leads the team to determine that the criminals had very unexpected motives. Meanwhile, Danny is stuck with the tough task of coming to the rescue of the most beautiful women in the world when a stalker goes after a Victoria's Secret model.
Episode: 3x10 | Airdate: Dec 10, 2012
An Aloha Girls camping trip with Grace turns deadly when an armed man takes McGarrett and a little girl hostage. Meanwhile, Adam introduces Kono to his dangerous brother who was recently released from prison.
Episode: 3x11 | Airdate: Dec 17, 2012
After someone foolishly tries to carjack McGarrett, he and Catherine meet a boy whose father is missing and may be in deadly trouble in the backwoods of Oahu.
Episode: 3x12 | Airdate: Jan 14, 2013
Danny and McGarrett investigate the murder of an Oahu University professor whose body is found decomposing in a tub of acid and his boss, his teaching assistant, and a student who he busted for cheating are all viable suspects.
For the first time in television history, a primetime drama will allow viewers to choose the ending of an episode in real-time when CBS's HAWAII FIVE-0 lets fans vote on CBS.com or Twitter during the East and West coast broadcasts, Monday, January 14, 2013, on the CBS Television Network.
Episode: 3x13 | Airdate: Jan 20, 2013
When Chin is kidnapped in the night and dropped in the middle of Halawa Prison dressed as an inmate, he must fight for his life to escape before the other prisoners recognize him as Five-0.
Episode: 3x14 | Airdate: Jan 21, 2013
On the eve of an election, the Governor asks 5-0 to discreetly investigate the murder of a prostitute found in the bed of a missing Congressman. Meanwhile, Danny goes to court to determine if he will get partial custody of Grace.
Episode: 3x15 | Airdate: Feb 4, 2013
Five-0 investigates when a mysterious man targets select police officers for revenge and McGarrett is the next on his hit list.
Episode: 3x16 | Airdate: Feb 11, 2013
Five-0 investigates the murder of a Lua master, and McGarrett hires a private investigator to follow his mother.
Episode: 3x17 | Airdate: Feb 18, 2013
It's an All-Pro football weekend in Hawaii and while Danny obsesses about the big game, Five-0 investigates the murder of a tech executive with the help of a star football player.
Episode: 3x18 | Airdate: Mar 18, 2013
When a murder victim falls onto Dog the Bounty Hunter's SUV, Five-0 sends Catherine in undercover at the local roller derby to find the culprit.
Episode: 3x19 | Airdate: Mar 25, 2013
When threats turn deadly against a tour company that endangers the local shark population, Five-0 faces the difficult task of narrowing down the suspect list. Meanwhile, the team debates whether or not Kamekona will earn his helicopter license.
Episode: 3x20 | Airdate: Apr 15, 2013
When McGarrett and Catherine cross into North Korea to retrieve the remains of a fallen friend, he recounts his last deadly mission there.
Episode: 3x21 | Airdate: Apr 29, 2013
Five-0 allows a talk show host and her crew to follow them for the day, but the investigation turns dangerous when they have a run-in with Wo Fat.
Episode: 3x22 | Airdate: May 6, 2013
When the body of a young girl who was kidnapped 10 years earlier is discovered, Five-0 must hunt down the kidnappers who have now taken their next victim. Meanwhile, Kono asks Catherine for a favor that could damage her relationship with Adam.
Episode: 3x23 | Airdate: May 13, 2013
McGarrett must help his mother execute a covert op to retrieve an incriminating microfiche. Meanwhile, Kono's life is in danger when she closes in on Adam's secret.
Episode: 3x24 | Airdate: May 20, 2013
As the CIA tasks Five-0 with finding a dangerous killer loose on the island, Kono goes on the run for a murder she did not commit. Meanwhile, McGarrett's prison visit to Wo Fat ends with a shocking discovery.
Specials
Episode: S03 Special | Airdate: Jan 14, 2013
Alternative Ending #1 of 3x12 Episode. The first alternative ending from "Your Vote - Your Ending". In this ending the murderer is Bram Helms, the Technical Assistant of the victim
Episode: S03 Special | Airdate: Jan 14, 2013
Alternative Ending #2 of 3x12 Episode. The second alternative ending from "Your Vote - Your Ending". In this ending the murderer is Tyler Brown, a student of the victim