Cold winds blow something ominous in the season two premiere of “The Legend of Korra.”

“The Legend of Korra” is a Nickelodeon cartoon about a young woman who finds herself as one of the most powerful beings in the world: the avatar. The avatar is the only person who can master manipulation of all the elements and connect with the spirit world. A sequel series to “Avatar: The Last Airbender,” the show is funny but still maintains an exciting and serious story.

Friday, the new season, “Book Two: Spirits,” premiered in grand fashion with a doubleheader. These episodes brought back all the excitement and action of the first season but with a new, unique plot.

As Korra trains to become the greatest avatar, the spirit world becomes restless and attacks the physical world. By the looks of this, viewers will see a deeper view of the spirit world. I’m looking forward to seeing this entirely new realm and the characters who come from there.

Exploring the spirit world allows the creators of the show to flesh out the avatar myth. The plot seems set up to explore the avatars of the past and look at how the avatars have shaped the world’s atmosphere.

This new season also presents a variety of new characters voiced by many talented actors. Aubrey Plaza as Korra’s cousin, Eska, is one of the best casting choices I didn’t know I wanted. Plaza’s dry and deadpan humor translates perfectly in the cartoon with her unique voice.

Despite my adoration for Plaza, James Remar as Korra’s father, Tonraq, is my favorite casting choice. People may recognize Remar’s voice as that of Dexter Morgan’s father, Harry, from the Showtime hit series “Dexter.” Remar certainly continues to show off his warm fatherly charm throughout the first two episodes of “Spirits.”

The show’s animations look even more fantastic than in the previous season: “The Legend of Korra” has kept up a beautiful combination of anime-inspired art with an American flair. The creators’ use of depth and movement helps make a dynamic environment. The hectic atmosphere is personified well through the show’s art direction.

“Book Two: Spirits” has set a solid foundation for the rest of the season. Great actors and an interesting storyline keep me coming back and craving more of the new season of “The Legend of Korra.”