When the frozen ocean water crumbles around her, Elsa is forced under the water, where she encounters a Nokk, a horse-like underwater creature that uses the power of the ocean to guard the secrets of the forest. It sparkles too!
THE ROCK TROLLS ARE ALIVE AND WELL
The wise, rolling creatures who raised Anna's beau, Kristoff, are back to share their ancient wisdom with the sisters and shed more light on Elsa's power, which they helped conceal in the original film.
THE GANG IS HEADING NORTH TO HELP ELSA
According to the wise Grand Pabbie of the rock trolls, the gang has to "go north, across the enchanted lands and into the unknown" to help Elsa find the truth.
"The past is not what it seems," he warns them, alluding to the sisters' belief that Elsa was born with her powers.
We also see young Anna and Elsa in a flashback, a few marshmallow-like creatures return, what looks like the land of eternal fall and some crazy, purple wildfire that threatens the gang.
Those beautiful ice prisms Elsa emanates that we last saw in the teaser are back too, along with even more theories that the film might be addressing climate change.
THE DRESSES ARE FAR MORE FUNCTIONAL
The rampant success of Disney's "Frozen" gave rise to a frenzied replication of Anna and Elsa's dresses. The follow-up short films -- "Frozen Fever" and "Olaf's Frozen Adventure" -- not only gave the women new stories to tell, but also new gowns to show off (and for fans to buy).