House (Hugh Laurie) and the team treat a knight (guest star Noah Segan) from a community of men and women living according to the ideals of the High Renaissance, but some timeless sexual politics may be at the root of the problem. Back on the home front, Wilson (Robert Sean Leonard) and his ex-wife (guest star Cynthia Watros) start over, much to House's horror, in "Knight Fall."

Series star Colin Ferguson directs this new episode, which guest stars Jamie Kennedy. Carter (Ferguson) leaves Eureka to visit his daughter at Harvard while the town celebrates Space Week. During that time, a new self-propagating oxygen technology developed by Dr. Ramsey (Kennedy) in order to potentially colonize Mars mysteriously begins to build up in the atmosphere above Eureka, threatening to incinerate the entire town in "The Story of O2."

Prior Philip and William (Matthew Macfadyen, David Oakes) find themselves in a standoff over access to the Shiring quarry. Jack's (Eddie Redmayne) artistic talents take hold. Aliena (Hayley Atwell) starts a business to help earn money for Richard's (Sam Claflin) chance to become a knight. King Stephen (Tony Curran) visits the cathedral work site.

Where's Ah-nuld when you really need him? Jean-Claude Van Damme stars in this laughable 1989 action film set in a post-apocalyptic future, where the Muscles From Brussels must accompany the half-female, half-robot heroine (Dayle Haddon -- who may hold the key to curing a global plague -- to safety, while her enemy (Vincent Klyn), who seeks world domination, stalks her. "Mad Max" it ain't.

Tensions in town run high as the Panthers-Lions game approaches, but Coach (Kyle Chandler) has bad news for Luke (Matt Lauria). Tami (Connie Britton) ponders whether she should follow the school board's wishes and issue a public apology. Vince (Michael B. Jordan) is persuaded to seek revenge for his friend's murder in the new episode "Laboring."

In this new episode, Florida mom Tracy Robinson, who spends a lot of her time "monster hunting" for a swamp creature with her husband, shakes things up when she swaps places with Andrea Parker, a Memphis, Tenn., mother who focuses all her time and energy on the career of her 9-year-old son, a fledgling hip-hop star, while largely ignoring her other four kids.

Oliver Stone's Oscar-winning account of the alleged conspiracy surrounding the 1963 assassination of President Kennedy unfolds in such committed, "true believer" style that many moviegoers took this 1991 docudrama to be more "docu" than "drama." Cooler heads have prevailed more recently, but stellar work by Tommy Lee Jones, Kevin Bacon and star Kevin Costner still fuels Stone's fever dream.

Bernard Chisholm (guest star JR Bourne), a doctor who died and was brought back to life by the Kandorians so they could experiment on him, escapes and tries to prove that aliens have invaded Earth. He kidnaps Lois (Erica Durance) after she refuses to write a story supporting him. Posing as a reporter for the Daily Planet, Zod (Callum Blue) uncovers Bernard's secret lab. Tom Welling also stars in "Conspiracy."

Sheriff, we've got a case of felony title abuse here. The original "Walking Tall," a 1970s classic, was based on the true story of wrestler-turned-Southern sheriff Buford Pusser, who spoke softly and literally wielded a big stick against vice and corruption in his town. This 2004 remake has a wrestler and a big stick, but he lives in the Northwest and his name is Chris. If pro wrestling star The Rock wanted to make a movie about a butt-kicking sheriff, fine. But unless his name is Buford and he lives in Tennessee, call it something else.

Man, Hallmark doesn't make a card for this! In "Dead Men Don't Wear Plaid," Dean and Sam (Jensen Ackles, Jared Padalecki) head to Bobby's (Jim Beaver) hometown when the dead begin rising from the grave to rejoin their families. After Bobby tries to get the brothers to leave, Dean discovers Bobby has been reunited with his late wife (guest star Carrie Anne Fleming), which complicates matters once the zombies start to turn evil.

Following her brain surgery, Allison (Patricia Arquette) starts having visions of strange symbols that may hold the key to learning the identity of an infamous serial killer. Joel David Moore, Fisher Stevens and Marcus Giamatti guest star in "The Medium Is the Message"; Jake Weber, Miguel Sandoval and Sofia Vassilieva also star.

Brady plunges into Mexico's Sea of Cortez in a bid to find a Humboldt squid, a dangerous deep-sea predator with a 7-foot tentacle span that is strong enough to pull a fisherman from his boat, and fitting it with a Crittercam, National Geographic's specially designed remote camera system, in the new episode "Cannibal Squid."