Eleven-year-old Raini Fraser wants her grandfather back.

Now that he's in a nursing home suffering from Alzheimer's, Raini is forced to live with her irritable, Scottish great-aunt who's intent on connecting her with her estranged father. Raini refuses, and her new life of strict rules and terrible food makes escaping out of her bedroom window a necessity.

During one such escape, Raini spies on two boys digging at a park when a security truck disrupts their progress and causes them to flee. Seizing the opportunity, she pockets their forgotten gold coin.

No longer able to rely on her grandfather's wisdom, Raini begins to unravel the coin's unknown past with the help of a professor at her grandfather's nursing home. However, the coin's value puts her in grave danger from those who will stop at nothing to get it back.

In a race against time, Raini decides her only option is to return the coin to its rightful owner. In the process, she uncovers deep-held family secrets about the coin, that have been hidden for generations. Could the coin be cursed?

More importantly, will Raini's estranged father, who knows something is wrong, finally earn her trust in time before it's too late?