The gang gets animated in the vein of "G.I. Joe."

A serial killer known for biting his victims appears to be killing again, even though he was presumed dead.

The hospital gets inundated with flu infected patients, which causes the doctors to slowly fall ill one by one. Derek must fight off the sickness as he prepares to give a speech on brain mapping and the residents place bets on who will fall ill first. Meanwhile, a new doctor at the hospital gives Alex a glimpse into an alternate form of medical practice.

Episode info coming soon ..

Zeek and Camille come to an agreement about the house; Julia throws herself into helping Kristina and Adam as she struggles with her own personal life; Sarah learns what her kids have been up to.

Leslie helps organize the high school's Senior Prom, and battles with Ron over the future employment of a bright high school senior. Andy takes an unwilling April as his date, and Tom is tasked with DJ'ing and agrees to let Ben help.

Fred has an idea for a music documentary. Peter is reunited with his old band, The Bahama Knights, and his ex-wife is lead singer. Trudy and Craig produce a song. Carrie and Fred go home after a concert. Guest starring Maya Rudolph, Tuck & Patti and Jeff Tweedy.

Forrest goes to space with his ex-father-in-law and competes in a friend-off to become his neighbor Gene's best friend.

Abby steps in as Olivia’s proxy and takes on duties at the White House. Meanwhile, the team continues to investigate B613, and someone throws a wrench in Reston’s presidential campaign.

A persistent attorney goes after one of Harvey's clients; Mike is faced with a difficult decision; former name partner Charles Van Dyke returns with revenge on his mind.

Raj struggles with guilt when he dates two women at once; Penny has a chance to play a part in a cheesy movie; Sheldon is torn between two gaming systems.

Experts claim to have found the Holy Grail, Emily Bazelon weighs in on money in politics, Bill O'Reilly embraces inequality, and Mark Mazzetti talks "The Way of the Knife."

Episode info coming soon ..

King Horik returns to Kattegat with a surprising proposition for Ragnar. Lagertha runs into a less than enthusiastic homecoming from her new husband. Athelstan, struggling with his own inner demons, becomes confidant to King Ecbert.