Izzie works on planning Meredith and Dereks wedding all while receiving intense treatment to battle her cancer. While George gets back in the game excelling at a trauma emergency, Alex freezes up. Owen seeks help for his PTSD from a familar face. Callie's father comes to visit and Callie introduces her new girlfriend Arizona much to his dismay.

Earl wants to make up for things he did to a reverend.

Lois needs a big story to boost her career, but the Red-Blue Blur proves too challenging for her investigative skills. However, when she rescues Chloe from a mugger, Lois decides to take advantage of the situation and disguise herself as Metropolis' newest hero - Stiletto. Although Clark disapproves, he soon finds himself counting on her help...

Leslie tries to get a reporter to do a story on her park project. Tom tries to score some brownie points with his boss.

Brennan and Booth investigate after the sister of Booth's detective friend Ken goes missing. After her decapitated head is found, Ken joins Brennan and Booth to help solve her murder.

When a murderer claims that the CSI team used faulty evidence when the verdict was reached, Catherine re-investigates the case, which happens to be one of her very first cases as a CSI.

Early deliveries cause problems for Michael's new paper companies. When Angela enforces the policies, expense reports are problematic.

The guys are on the road when a call comes in on their dad's old cell phone. A college student named Adam Milligan says that his mother's disappeared and he's trying to get hold of his father: John Winchester.

One castaway attempts to pull off a last minute upset with a devious strategic move, while another becomes an outcast and is forced to beg for a second chance.

The chef's taste buds are put to the test when Chef Ramsay prepares three dishes for them to try. They are then given thirty minutes to prepare just one of the dishes, the fish stew, identifying the ingredients only by taste. The winner enjoys an afternoon with Ramsay, taking an amazing ride in a bi-plane. The losing chefs are punished with polishing crystal and cutlery, cleaning the carpets and prepping for the evening's service. During the dinner service Chef Ramsay tells them they need make it all the way through not only for themselves, but for one of their guests, who plans to propose to girlfriend during the dessert course. Two chefs rise to the challenge, but two struggle throughout the night. One is ultimately eliminated and then Chef Ramsay announces a surprise, to be revealed in the next episode.

Sam starts to reconsider his friendship with Naomi and Addison with Noah's help try to save a pregnant woman with heart problems. Meanwhile, Pete's relationship with Lisa gets complicated with Violet's pregnancy.

Senior is having some work done on the shop and in return he's building bikes for the contracted companies, DECA and Columet. Everyone at OCC is trying to adjust to life in the shop without Paul Jr.

Liz is turned to by Jack for help finding an engagement ring for Elisa, while Elisa comes to her to confide a secret. Jenna falls for an EMT.

In the season finale, Barker gets a list of 6 people involved in Red Gauntlet. Now, Barker and Ellis, along with a little help, must take them down before they find Barker.

Abby isn't sure the ruling of girl's death is right. Also Trish is on the fence about Hunter.

Ben reveals details of his past that explain his motivation to be a cop. Meanwhile, Chickie questions her partnership with Dewey when the latter becomes starstruck and fails to do his job.

Tonight Stephen welcomes the West Africa Program Officer for Heifer International, Elizabeth Bintliff.

The popular news quiz returns, with team captains Paul Merton and Ian Hislop, guest host Frank Skinner, and guest panellists Alan Duncan and Katy Brand.