Pingu and his family move from their small village to the big city; in which there are many people with many different occupations. The ever-curious Pingu tries to join them at their jobs, but his mischievous side gets the better of him and he ends up messing things up.
Seth arrived at the Artemis Institute, the city of sorcerers. He must find the Yaga wizard to get information about the Radiant, but a yellow cat might make it difficult for him...
Cricket persuades the family to hit up a Thanksgiving sale for a sweet deal on a new TV.
After his disappearance, Glomgold resurfaces as anything but his ever-scheming self, while Webby and Louie try to uncover the truth behind who is Duke Baloney.
Zak and the crew travel to St. Anthony, ID, to investigate a former school with a dark history of suicide and death. The guys capture paranormal activity that proves the children who lost their lives are still trapped on the grounds.
While trying to celebrate his birthday, Henry keeps getting interrupted by crimes going on in Swellview.
Louis makes it his mission to teach Eddie how to be a good driver after a police officer makes a comment about Asian drivers; Evan is jealous when he discovers that Grandma has only been inviting Emery to hang out with her at her new apartment.
Jamie clashes with Eddie and her new partner when they fail to intervene in a dispute at a convenience store. Danny and Baez investigate the death of a college freshman at a fraternity party. A sergeant accuses the department of reverse racism.
A decoded tattoo leads the team to a mysterious cache of dolls which turn out to be vehicles for biological weapons being sent around the world and now to the FBI. Jane exploits the fear of the weapons to advance her own plan to recover Shepherd.
Seeking a new outlet for her superpowers as JJ prepares for college, Maya sets her sights on a receptive Ray. JJ gets involved in a (too) high stakes poker game, while Dylan discovers what really happens after her bedtime.
McGarrett crosses the line and is arrested while investigating the death of his former SEAL buddy, who died while making an emergency landing on an aircraft carrier, and the only survivor is a baby. Also, Adam returns to Oahu with some devastating news about his marriage.
Graham is joined by Claire Foy, starring in the crime thriller The Girl in the Spider's Web, Hollywood action hero Kurt Russell, playing Santa Claus in The Christmas Chronicles, comedian and writer David Walliams, presenting his new children's book The Ice Monster, and actor and comedian Lee Evans, back on the West End stage in a new Harold Pinter season. With music from Mumford & Sons, performing their new single Guiding Light.
Pacifica is bombed and the heroes decide to follow the Talker Underground to stop whoever is behind the attacks.
As the first woman president, Claire faces increased scrutiny and threats. Sibling power couple Annette and Bill Shepherd attempt to influence policy.