JJ1098
After the Guardians defeat of Pitch Black, they think that they've defeated him once and for all; the only one who doesn't think this is Jack, Jack Frost. He senses that this isn't the end, and he's right. Pitch Black has risen once again to fufill what he's always wanted: world domination, and to find a new queen. He plans to take over the kingdom of Arendelle and make Elsa his queen.
Toothiana, on a night trip to collect her... treasures, encounters one of Black's henchmen. She silently fights him off, trying her best not to disturb any one's slumber. However she manages to wake up Elsa. Toothiana does her best to warn Elsa about her kingdom and also warns North about Pitch Black's rise. North makes a decision to send Jack Frost ( since he defeated Black last time) and Bunny.
Sparks flare up when Jack and Elsa meet (again). Elsa has made it her mission to 1, NOT fall in LOVE with Jack, and 2, protect her kingdom and her friends. Jack has made it HIS mission to protect Elsa. With his life, he swore to himself. All while poor Bunnymund is left to protect BOTH Elsa and Jack because of his 'big-brother soft side.'