The fans returning for Frozen 2 in 2019 ... seems lost. Elsa (Idina Menzel) uncovers troubling secrets about Arendelle's past, a la Thor: Ragnarok and Maleficent: Mistress of Evil.

Following is a transcript of the video. Narrator: Here's Elsa and Anna in 2013's "Frozen," and here they are in "Frozen II." While they may look like the characters you know and love at first ...