After whetting fans’ appetites with a dialogue-free teaser in February, the studio revealed a bit more of the follow-up’s story in the new clip. Princesses Elsa (voiced by Idina Menzel) and Anna (Kristen Bell) leave the kingdom of Arendelle behind to travel over raging waterfalls and past Stonehenge-like monuments on a perilous quest to unravel a mystery about their homeland.

The trailer has a surreal feel, as a glowing horse appears to Elsa underwater and a rolling boulder transforms into a troll-like creature, who warns her, “The past is not what it seems.” As Elsa unleashes her icy powers, Anna vows to protect her older sister: “I won’t let anything happen to her.”