Dash hates Christmas, but his Yuletide spirits brighten when he finds a mysterious red notebook filled with clues hidden at his favorite bookstore.

Lily loves Christmas, but the prospect of a lonely holiday inspires her to connect with Dash through the notebook — and send him on another dare.

With the year's final hours ticking down, Dash does some soul-searching and comes to a decision about Lily, unaware that her life is about to change.