The beloved "Animagic" tale of the most famous reindeer of all offers a thoughtful lesson about discrimination. Young Rudolph is teased by the other reindeer and excluded from their games because his nose is different. His taunters sing a different tune, though, when Rudolph uses the trait to keep Christmas from being canceled. Burl Ives is the voice of Sam the Snowman, who narrates the story and renders the title tune (of course) plus "A Holly Jolly Christmas."

A crossover involving all four of The CW's superhero series continues with the new episode "Invasion!," whose title describes what happens in Central City when aliens known as the Dominators arrive. Barry (Grant Gustin) seeks help from Green Arrow (guest star Stephen Amell) and the Legends of Tomorrow, then Supergirl (guest star Melissa Benoist) also is brought into the battle. Wally (Keiynan Lonsdale) wants to help, but Iris (Candice Patton) warns him not to.

Getting a job to keep himself near Evie (Tori Anderson) seems like a good idea at the time for Xavier (Joshua Sasse) in the new episode "No Rest for the Weary." However, when he inspires some of her co-workers to go on strike, the situation takes a definite turn for the worse. Kareema (Sarayu Blue) comes to a tipping point about the person who's her covert love match. Amy Pietz, Jonathan Langdon and Jesse Rath also star.

The aftermath of an unsettling Thanksgiving sends Kate, Kevin and Randall (Chrissy Metz, Justin Hartley, Sterling K. Brown) to the family cabin for intended healing in the new episode "The Trip." However, the result is anything but calming, with Olivia's (guest star Janet Montgomery) words to Kate stirring particular problems. In flashbacks, the young Randall informs Rebecca and Jack (Mandy Moore, Milo Ventimiglia) that he's seeking his biological parents.

In a new episode called "Your Mama Had a Hard Night," Letty (Michelle Dockery) gives legitimate good behavior a try as she heads back to her hometown to be near her son, Jacob (Nyles Julian Steele), which requires her to find a clever work-around to avoid violating the restraining order. While there, she tries to protect her old friend Tiffany (Colette Wolfe) from the disturbing truth about her husband. Sadly, this attempt to be good only winds up exploding in Letty's face.

After a family member begins to show symptoms that suggest the plague, the Copelands go on a desperate quest to find tetracyline, only to find -- no surprise, in the middle of an epidemic -- that many others are searching for the same antibiotic in the new episode "Hieronymo's Mad Againe," a title that definitely scores points for creativity. Anne Heche, James Tupper, Levi Meaden and Julia Sarah Stone star.

The popularity of certain true-crime podcasts informs "Unambiguous," as the host of such a program (guest star Sarah Steele, "The Good Wife") factors into Bull's (Michael Weatherly) work on the trial of a woman accused of killing a popular athlete she claimed had assaulted her. Benny (Freddy Rodriguez) is reunited with his ex-girlfriend (guest star Tiffany Villarin), another lawyer he hasn't seen since they split. Joe Grifasi guest stars as the judge.

OK, "Drunk History" fans, this is the new episode most of you have been waiting for all season: "Hamilton," in which Lin-Manuel Miranda, the Tony Award-winning author and original star of the same-titled Broadway musical blockbuster, gets hammered on a bottle of honey whiskey and then slurrily narrates an account of the famous duel between Alexander Hamilton (portrayed by "Arrested Development" alumna Alia Shawkat) and Aaron Burr (Aubrey Plaza, "Parks and Recreation"). Derek Waters is the host.

Woody (Tom Hanks), a good-hearted cowboy doll who belongs to a young boy named Andy (John Morris), sees his position as Andy's favorite toy jeopardized when his parents buy him a Buzz Lightyear (Tim Allen) action figure. Even worse, the arrogant Buzz thinks he's a real spaceman on a mission to return to his home planet. When Andy's family moves to a new house, Woody and Buzz must escape the clutches of maladjusted neighbor Sid Phillips (Erik von Detten) and reunite with their boy.

U.S. Navy SEAL Chris Kyle (Bradley Cooper) takes his sole mission -- protect his comrades -- to heart and becomes one of the most lethal snipers in American history. His pinpoint accuracy not only saves countless lives but also makes him a prime target of insurgents. Despite grave danger and his struggle to be a good husband and father to his family back in the States, Kyle serves four tours of duty in Iraq. However, when he finally returns home, he finds that he cannot leave the war behind.

The adventure continues in this "Star Wars" sequel. Luke Skywalker (Mark Hamill), Han Solo (Harrison Ford), Princess Leia (Carrie Fisher) and Chewbacca (Peter Mayhew) face attack by the Imperial forces and its AT-AT walkers on the ice planet Hoth. While Han and Leia escape in the Millennium Falcon, Luke travels to Dagobah in search of Yoda. Only with the Jedi master's help will Luke survive when the dark side of the Force beckons him into the ultimate duel with Darth Vader (David Prowse).

Teenage Cady Heron (Lindsay Lohan) was educated in Africa by her scientist parents. When her family moves to the suburbs of Illinois, Cady finally gets to experience public school and gets a quick primer on the cruel, tacit laws of popularity that divide her fellow students into tightly knit cliques. She unwittingly finds herself in the good graces of an elite group of cool students dubbed "the Plastics," but Cady soon realizes how her shallow group of new friends earned this nickname.

Outlaw Ben Wade (Russell Crowe) terrorizes 1800s Arizona, especially the Southern Railroad, until he is finally captured. Wade must be brought to trial, so Dan Evans (Christian Bale), the owner of a drought-stricken ranch, volunteers to escort him to the train. Along the trail, a grudging respect forms between the men, but danger looms at every turn, and the criminal's men are in pursuit.

A girl who's sick of the social strictures of junior high is transformed into a grownup overnight. In this feel-good fairy tale, teenager Jenna (Christa B. Allen) wants a boyfriend, and when she's unable to find one, she fantasizes about being a well-adjusted adult. Suddenly, her secret desire becomes a reality, and she is transformed into a 30-year-old (Jennifer Garner). But adulthood, with its own set of male-female challenges, isn't as easy as it looks.

Banished by an evil queen, Princess Giselle (Amy Adams) from a fairy-tale world lands in modern Manhattan, where music, magic and "happily ever after" are sorely lacking. She is adrift in this strange new place until a divorce lawyer (Patrick Dempsey) comes to her aid. Giselle begins to fall for her flawed benefactor, but the storybook romance gets complicated when a prince from her world comes to rescue her.

When a crime brings them back to the mean streets of Los Angeles, fugitive ex-convict Dom Toretto (Vin Diesel) and agent Brian O'Conner (Paul Walker) reignite their high-octane feud. However, when a common enemy rears his head, Dom and Brian must learn how to work together and trust one another in order to defeat him.

This Hollywood drama is based on the events of the Apollo 13 lunar mission, astronauts Jim Lovell (Tom Hanks), Fred Haise (Bill Paxton) and Jack Swigert (Kevin Bacon) find everything going according to plan after leaving Earth's orbit. However, when an oxygen tank explodes, the scheduled moon landing is called off. Subsequent tensions within the crew and numerous technical problems threaten both the astronauts' survival and their safe return to Earth.