Mako, Korra, and Asami take a break from their battle with the Earth Empire, and reflect on what happened to them over the years.
After uncovering faulty bulletproof vests in a truck filled with stolen U.S.M.C. merchandise, the NCIS team attempts to locate both the source and any vests that had been shipped to military personnel overseas.moreless
Harmonic Convergence has arrived and Vaatu is free from his prison. Korra begins their fated battle by throwing Unalaq out of the Spirit World in order to battle Vaatu one on one. However, Unalaq is able to use the terrain of the south pole to his advantage and, with some help from Eska and Desna, quickly subdues Mako and Bolin and re-enters the Spirit World. He then stops Korra long enough to merge with Vaatu and turn himself into the Dark Avatar. Korra and Unalaq leave the Spirit World where the battle of the Avatars begins. Meanwhile, Tenzin, Kya, and Bumi search the Spirit World for Jinora, and wind up trapped in a dense fog that preys on their fears and insecurities.moreless
Unalaq and Vaatu, now combined as the Dark Avatar arrive in Republic City and begin to cause chaos in the city. President Raiko has the United Forces attack the giant spirit, but to no avail. After finding Jinora, Tenzin, Kya, and Bumi return to the south pole to find Korra, Mako, and Bolin injured from Unavaatu's power. They retreat to the Spirit World where Kya heals them. Korra has lost all hope now that she has lost her Avatar spirit, but Tenzin tells her to remember that she is herself, not the person Raava made her. With this advice, Korra's spirit heads to Republic City to stop Unavaatu and save the world from 10,000 years of darkness.moreless
With Jinora stuck in the Spirit World thanks to Unalaq, Korra and Tenzin return to Republic City in order to help convince President Raiko to intervene in the civil war. Also hoping to convince Raiko to enter the war is Varrick. Varrick sets up a grand showing of the finale of his Nuktuk mover at the Pro-Bending arena and invites everyone to the showing, including President Raiko. However, the showing turns out to be a setup so Varrick can organize a kidnapping of Raiko in order to send the United Republic to war. Meanwhile, Tonraq and the other Southern rebels storm the Southern Water Tribe capital city hoping to remove Unalaq and his forces from the city.
Team Avatar arrives in the Southern Water Tribe where they seek assistance from Katara in order to help Jinora. Katara reveals that with it having been over a week since Jinora was trapped in the spirit world, soon she will slip away forever. With Harmonic Convergence just hours away, the group making a daring attempt to enter the spirit world. Mako, Bolin, and Asami head to the portal on a bi-plane while Korra, Tenzin, Kya, and Bumi try to fly in on Oogi. However, Unalaq has already prepared for their arrival and an all out battle ensues.moreless
Korra and Jinora have entered the Spirit World. However, before they can begin their search for the spirit portals, angry spirits send the two crashing into river rapids that separate them. Korra winds up in a dark forest where she runs into Iroh, an old friend of Avatar Aang. Iroh takes Korra to his home where he gives her advice on how to reunite with Jinora and find her way around the Spirit World, leading her to embark on a quest to help a young dragon bird spirit. Meanwhile, thanks to her spirit friends, Jinora discovers Wan Shi Tong's Library. Despite still being upset at Avatar Aang's betrayal over 70 years ago, he permits Jinora to say in the library and look for info on the spirit portals. However, the spirit may not be as forgiving as he seems.moreless
With Harmonic Convergence just weeks away, Korra reunites with Tenzin and his family at the Eastern Air Temple. With the southern spirit portal heavily guarded by Unalaq's forces, Korra decides to enter the Spirit World and close the spirit portal from the inside so Unalaq cannot stop her. Tenzin agrees to help her enter the spirit world, but Tenzin struggles to enter. However, Jinora may hold the key instead. At the South Pole, Unalaq, believing that Korra is dead, tries to open the northern spirit portal. Meanwhile, in Republic City Mako continues to try and prove that Varrick is responsible for the Cultural Center bombing, but Varrick is one step ahead of him, and uses Bolin and Asami to get to him.moreless
The Republic City police force investigates ship bombings near the Southern Water Tribe, including ships with shipments from Varrick. Despite finding out how the bombings are happening, no suspects can be pinpointed. This leads Mako, Asami, and Varrick to organize a sting operation to capture the culprits. However, things are not what they seem and soon Mako and Asami find themselves the very target of their own operation. Back in Republic City, Bolin's new fame in movies causes him to ignore his brother and friend's request for help. Meanwhile, following the attack by the Dark Spirit, Korra wakes up on a seemingly deserted island with no memory of who she is.moreless
The Avatar gang returns to Republic City where tensions are also growing between the two Water Tribes. That night Korra participates in a peaceful march with her fellow Southern Water Tribe citizens. However, things quickly take a turn for the worse when the Southern Water Tribe cultural center is bombed. With tensions increasing by the day, Korra meets with the new president of the United Republic in order to convince him to send troops to the South pole and end the civil war, but he refuses, leading Korra to think of other ways to help her tribe. Meanwhile, Bolin becomes the star in Varrick's new movie, Mako investigates the bombing, Asami tries to salvage her company and Unalaq orders Eska and Desna to capture Korra and return her to the South Pole.moreless
Unalaq puts Korra's parents and the rest of the Southern Rebels on trial for treason. The judge finds Senna not guilty, but finds everyone else Guilty and sentences them to death. Korra fiercely condemns this and Unalaq convinces the judge to change the verdict to a life sentence. Not trusting the judge, Korra chases him down in his car and demands answers from him and discovers that the trial was rigged and learns all about Unalaq's true motives. Meanwhile, Asami, Mako, and Bolin meet with Varrick hoping to help with the future of Future Industries, and at the Southern Air Temple, Tenzin continues his search for Ikki.moreless
Unalaq takes over the leadership role of the Southern Water Tribe and has his troops patrol the city and blockade off the harbor which causes tensions between his forces and the residents. As both the Avatar and resident of the Southern Water Tribe, Korra is stuck between a rock and a hard place in the potential war that could erupt between the two tribes. Things escalate when a group of rebels decided to "take care" of Unalaq leading Korra to make her toughest decision yet as Avatar. Meanwhile, Tenzin and his family are relaxing at the Southern Air Temple. However, when Ikki goes missing, Tenzin and his siblings go to search for her and the three end up fighting with each other.moreless
Six months have passed since Amon and the Equalists were defeated, and Korra and the rest of Team Avatar have settled into the peace and quiet Republic City has come to enjoy. Everyone packs up and heads to the South Pole where the Glacier Spirits Festival is set to take place. Upon their arrival, they are soon greeted by Korra's parents, as well as Tonraq's brother, Unalaq, chief of the Northern Water Tribe. Tensions between the two over the spirits of the south force Korra to rethink her training regime. However, the spirits don't wait and that night they launch their angry attack on Korra.moreless
Korra begins her spiritual training under Unalaq. Unalaq tells Korra that in order to help the Southern Water Tribe heal it's spiritual side they must travel to the forest at the South Pole and reopen the spiritual portal there. Despite the tension between the two brothers, Tonraq joins the group on their quest, but things turn sour when revelations of Tonraq's past are revealed. Meanwhile, Tenzin, his siblings, and family arrive at the Southern Air Temple as the first stop on their Air Temple trip.moreless
Castle and Beckett find there are plenty of suspects when a powerful divorce attorney is murdered. Chaos, tension, humor and awkwardness abound when circumstances bring Castle's ex-wife, Meredith, and Beckett to both live at the loft.moreless
When a young man calls 911 to report seeing someone being buried in Griffith Park, police find not only her remains, but those of several other women who were kills as far back as two years ago. Brenda immediately suspects Philip Stroh and, despite departmental restrictions, sets out to finally tie him to the murders. Meanwhile, the witness who called 911 makes Brenda look at her life and future.moreless
When a serial killer strikes in Los Angeles, it grabs the attention of Abby Sciuto. She travels from Washington DC to give the team a hand, since she has been following this killer for some time.moreless
The BAU investigates a series of murders in Central California that appear to be connected to a killer who jumps trains and chooses his victims based on their proximity to the railway.