From the introduction:
Julinda the gnome mage has always been a bit off. She is a chronomancer who has become obsessed with achieving the reliable and reproducible technology of time travel, in the interest of returning to select parts of history and influencing their outcome to her pleasing; perhaps to avert a war, or to head off the enslavement of her people, or prevent the death of a loved one. Those who know her were aware of her ambitions, and now worry that they are coming to fruition, as she hasn't been seen in several months. And so, they have implored the PCs to seek her out...
The module includes a YouTube link to a Free Video Supplement.