While consulting with the NTSB at the scene of the wreck, Don learns that this tragedy is one of a series of recreated accidents involving railroad negligence. As is the pattern with the previous train wrecks, an undecipherable numerical code is left at the site, which Don recruits Charlie to solve. By breaking the code, Charlie is able to establish that this accident was a recreation of a deadly wreck that left only one survivor several years ago. Don's investigation leads him and his team to a dangerous standoff with their suspect, who has surprising ties to the railway system.
While Dan is plagued by a shrieking twit of a photographer called 15Peter20, Nathan grooms Claire with alcohol and unsolicited breast massage.
Aang is excited about going home for the first time in one hundred years, but he is shocked to find out that the temple is deserted. Aang tells Sokka and Katara about his childhood as they explore the temple, but they soon discover something that Aang never expected. Meanwhile, Zuko must make repairs to his ship and the only way he can do it is to dock his ship at his rival's naval base.
Neela (who's in Chicago) and Gallant (who's in Iraq) miss each other and write letters. Gallant also tries to save the life of a little girl.
With qualification for the Grand Festival hanging on the line, May is more determined then ever to win the contest to win her final Ribbon. First, Erika faces Jessie and Meowth and the latte somehow uses Transform. When the judges find out the truth, they get disqualified. Then May faces off against Joshua and after some battles, she pulls off a win. Erika finally apologizes to May and together the two have a great battle. After a lucky Fire Spin from Assist, May and Skitty won and the former qualifies for the Grand Festival.
The ultimate sixteen-week job interview where eighteen Americans compete in a series of rigorous business tasks, many of which include prominent Fortune 500 companies and require street smarts and intelligence to conquer, in order to show the boss that they are the best candidate for his companies. In each episode, the losing team is sent to the boardroom where they are judged on their performance in the task. One person is fired and sent home.
The Nan Zhao kingdom is brainwashed by the chief of a moon-worshiping cult who forces the King to sentence his Queen (Sun Li) to death, claiming that she is a demon.
It's a rainy day in Newport where Lindsay decides to take the DNA test and makes a difficult choice regarding her life with Caleb while Ryan helps her through it. Sandy still wants to help Rebecca with her case and tries to convince her not to run again. Kirsten is still upset and wishes her marriage would go back to normal and for Rebecca's case to be over with. Meanwhile, Seth thinks he's lost Summer forever untill Summer is unable to hide from her feelings once and for all. Marissa moves out of the Cooper-Nichol mansion and moves in with Alex after she tells her mother about Alex being her girlfriend.
Catherine, Nick, and Warrick investigate a badly mutilated body in the woods. The cause of death was a shotgun blast. Nearby is a beaver dam made in part with cash. Grissom, Sarah, and Nick try to determine how a man was killed in a hotel room. It leads them to a convention of big women.
Martin is swamped with guilt after a young boy is kidnapped shortly after he jogs by. The team tries to reassure Martin that his presence was a help rather than a hindrance as they search for the kidnapped child, but Sam's continued reluctance to admit to their relationship partnered with Martin's jealousy of her relationship with Jack only cause more problems.
Kelly starts to moan about Betty's friendship with her long-lost son and she starts to mistreat Kev. She is then tempted by Max. As Kev gets a new assistant in the chip shop. Will Kelly be able to hold it together with her new fitness coach Max?
Koror discovers their beach is infested with rats; romance brews at both camp, which leads to suspicion all around.
Tim Gunn visits the final three designers at their homes to show the progress of their collections. Each designer must create a twelve piece collection for a showing at New York Olympus Fashion Week. After months at home to prepare, the final moment has come to show the world their collections.
When Jimmy comes down with a case of the sweats and a decreased interest in sex, he goes to the doctor, who diagnoses him with andropause (male menopause) -- which leaves him feeling insecure about his masculinity.
The cases of Harmon Rabb, former Navy fighter pilot, and his fellow lawyers of the U.S. Navy's Judge Advocate General's office.
The Nan Zhao kingdom is brainwashed by the chief of a moon-worshiping cult who forces the King to sentence his Queen (Sun Li) to death, claiming that she is a demon.
A new inspector, detective Suk is on the case of Zeman's homicide. During his investigation, he discovers that there is more to Zeman's murder than first assumed. Suk also meets a lady whom he falls head over hills for
When the raft the survivors have been building mysteriously burns down, Michael is convinced that Jin is responsible for the sabotage, which only serves to escalate their rivalry. Meanwhile, Sun stuns her fellow survivors with a surprising revelation, and Boone gives Sayid a warning about his step-sister Shannon. Lastly, more details of Jin and Sun's troubled marriage are revealed through flashbacks.
After Clark receives a message from the recently-deceased Dr. Swann, he and Lana follow Jason and Lex to China in search of one of the kryptonian crystals. Lana is tortured, causing Isabelle to emerge and wreck havoc in her search for the crystal.
Sloane temporarily steps down as Director of his Task Force and gives Jack full authority over the next assignment, which involves Anna Espinosa, Sydney's old foe. However, Anna turns the tables on APO when she captures Nadia and forces Sydney to do her biddings. Sydney tells Nadia about the Rambaldi's prophecy which dictates that two sisters will fight and only one will survive. Meanwhile, Vaughn visits Sark and tries to trick him into helping them to catch Anna. In the end, one of the sisters is mortally wounded by Anna.