Three siblings, Megan, Nicholas, and Brooke, think they are going on an uneventful family vacation. They couldn't be more wrong! They find themselves investigating the mysterious disappearance, many years ago, of their great-great-uncle Jack. After being spirited away to a foreign land, the siblings wonder if they will ever solve the case, let alone get home again. Back at camp, where time stands still, their baby brother Tanner just might have found the missing piece that unlocks an old family mystery.