Emotions run high as the harrowing day climaxes with resolute President Taylor closing in on a world-changing peace treaty and a vengeful Jack Bauer taking matters into his own hands for one last and unforgettable job.

Kat decides to study abroad in Nepal; Bianca has a hard time accepting Walter and Ms. Tharpe dating.

Marshall and Lily make a secret pact to start trying to have a baby if they ever finally see Barney’s doppelganger. Meanwhile, Robin finally gets an offer for her dream job.

Season 9 finale: The “Star Wars” saga, “Family Guy”-style, continues with Peter’s spin on “The Empire Strikes Back.”

Henry marries Catherine Parr – his sixth and final wife. A loving step-mother and compassionate companion, Catherine is liked and respected by all at court save the Catholic Bishop Gardiner who suspects her to be a heretic. Henry prepares to invade France.

Chase returns and makes an effort to repair his marriage; Roxy has complications with her pregnancy; Claudia Joy makes the final steps to apply for law school; Jeremy asks Denise for permission to reenlist.

Walt, obsessed with a contaminant, refuses to cook; Jesse tries to get Walt on track.

Cleveland discovers that his parents plan to remarry and that his father wants Donna’s ex-husband to be the best man.

After displaying a talent for judging contests, Moe is invited to appear on “American Idol”; Homer gets on Marge’s nerves when he spends too much time at home.

Rush returns to Earth to find a way to prove Telford is a spy.

When Allison’s brain tumor resurfaces, its aftermath could have life-altering consequences for her friends and family, on the sixth season finale of MEDIUM.

Jim’s hospital is being haunted by the ghosts of kids from an abandoned polio ward in the early 1900’s. And the connection of Aidan, Melinda, the Shinies and the Shadows will come to a climax and Melinda and Jim will realize that they know almost nothing about Aiden’s powers.

In part two of the two-hour season finale, Cristina and Meredith’s surgical skills are put to the ultimate test.

In part one of the two-hour season finale, Seattle Grace Hospital is hit with a crisis like no other in its history, a shooter is in the hospital.

Sacrifices will be made and both universes may never be the same again after Walter and Olivia visit the “other side”

Liz questions fate when she meets the man of her dreams, while Jack’s love triangle between high school love, Nancy Donovan, and CNBC anchor, Avery Jessup, comes to a head. Meanwhile, Jenna’s boyfriend is confronted with a similar dilemma when his desire for another woman threatens to ruin their relationship, and Kenneth, with the help of Tracy, tries to avoid a promotion that would land him in LA. 30 Rock Season 4 Episode 22...

When the press learns that Sabre’s printers catch on fire, Jo (Kathy Bates) tries to find out who the whistle-blower is.

Mark continues his interrogation of Hellinger; Lloyd finds something that could help him solve the complex equation from his flashforward; Tracy fights for her life.