The men of Seattle Grace go on a camping trip together, Addison and Callie must team up to work on a patient, Meredith assists Sloan with a procedure unlike any she has experienced, and, suspicious of her recent actions at the hospital, Bailey confronts Cristina. A 9-year-old is seen by Cristina after he swallowed Monopoly game pieces. A pregnant 25-year-old, is brought in after she slipped in the shower. She doesn't want medicine to take away the pain from her injury so not to put her baby's growth in jeopardy. Doctors take care of Daniel, a man who wants a sexual reassignment surgery and who now goes under the name Donna. Accompanying Daniel is his wife of the past 10 years, who was surprised to see him want that surgery but, after much struggling, decided to stay by his side.
Sam and Dean investigate the murder of a lawyer and his wife, who claimed to have seen a ghost before they were killed. However, local authorities arrest the Winchesters after looking into their past.
After being shot while stopping a carjacking, the Green Arrow begins acting strangely. Chloe and Clark investigate and find Oliver is taking a super drug that while healing his wound, has some dangerous side effects.
Jan told Michael that the board had voted to close the Scranton branch. There would be a select group of employees that would get a severance package; the others would be going to work at the Stamford branch. She informed Michael that he would be one who would get a severance package.
After an 8-year-old girl is kidnapped from a park and murdered, Stark believes this new case could be linked to a similar crime committed 15 years ago. In the former case, the main suspect had been defended by Stark himself and prosecuted by Jessica Devlin, and the man had been convicted of the murder. Meanwhile, a young man tells Julie he believes his late father and her mother had an affair while she was still married to Stark.
A reality show where a group of contestants are stranded in a remote location with little more than the clothes on their back. The lone survivor of this contest takes home a million dollars.
While investigating an elderly woman's murder, Grissom receives a miniature crime scene replica; Greg attends a hearing to ascertain his culpability in a teenager's accidental death.
Ryan and Seth go to Mexico to find Volchok, but Seth secretly phones home worried about what Ryan might do if they find him. A distraught Sandy and Kirsten decide to go after the boys and try to stop Ryan before he does something he might regret. Meanwhile, Julie and Kaitlin are forced to participate in a clothing drive at the school, and Summer and her hippie friends try to save a tree.
Jason, Grant and the Ghost Hunters team revisit the notoriously haunted Stanley Hotel.
After William is initiated into the group, a series of events leaves only him and Aelita to defend Lyoko's core. During William's first mission to Lyoko, Xana uses the Scyphozoa to possess him, making him the general of a massive army focused on Lyoko's core. Despite their best efforts, the group can't stop the possessed William from destroying the core, which both renders the supercomputer useless and transforms William into a darker, Xana-themed version of himself. Later, in the Hermitage, while the group broods over their predicament, Jeremie receives a coded message directly from the internet, sent by none other than Franz Hopper who somehow survived the destruction of Lyoko.
Thank God Shaun Micallef, Julia Zemiro, Tony Martin, Hamish Blake and Frank Woodley are here.
The next case for the CSI’s gets even tougher when a paintball player turns out to be the prime suspect and later goes missing the team also has another problem the evidence that should point to the prime suspect points to someone else.
When the skeletal remains of a federal prosecutor who disappeared five years earlier are found in the desert outside Las Vegas, the team suspects it to be tied to the mob. Booth and Brennan go undercover as Vegas high-rollers in an attempt to uncover the mystery, Booth risks his life.
Lizzie reveals a connection with Lucas that was established during the bank robbery. Egan plans a poker party, and Kathryn sees a new side to Nick and makes a decision about her future. Jeremy and Franny decide to take their relationship a step further.
Captain Hero is desperate to hang out with the cool kids like Spanky, Clara and Foxxy, while Foxxy is desperate to save the world from a meteor. In the meantime, Ling-Ling takes up cockfighting in order to bribe the Mexican police.
Jack makes a decision regarding Ben's offer. Sawyer's life is placed in danger when Pickett decides to make good on his threat. Locke discovers a hidden message that may help unlock the island's secrets. Kate recalls memories from the past, which caused her to make an important choice.
Nathan struggles with money problems and reluctantly asks Dan for help. Elsewhere Brooke learns the new man in her life is also her new English teacher. Peyton gets help from an unexpected source, and Lucas returns to the Ravens just in time to help the team advance in the playoffs for the state championship.
The BAU travels to Seattle to identify and catch a serial bomber who has been terrorizing the city and targeting centers of automated techology. Working with the author of a science fiction novel that has become a guide for the bomber, the team attempts to determine why certain sites have been chosen as targets.
Jake and Eric head out of Jericho to the nearby town of Rogue River to try and acquire some medicine for their father. While the brothers are at the hospital they encounter a combative group of individuals who call themselves Ravenwood. The brothers find that they’re trapped and must find a way back to Jericho.