Professor Jordan Armstrong, a biogenetic engineer, is at an impasse in her super food research. In order to move forward, she is adamant that her former professor, Noeul Scott, is the key. The problem is, Noeul vanished after a personal tragedy. Jordan stumbles upon a coded 'bucket list' that she hopes will reveal clues to where she's gone. With the help of her cryptologist sister, Jordan follows clues to several National Parks where hidden memorials to Noeul's deceased wife, contain the next set of coded ciphers. Jordan must decode each in order to reveal the next location. Along this expedition, she is guided by something, or someone, she can't see. Unexplained happenstances continue to direct her steps.