A mystery for the history books! River Heights Elementary School has been waiting a generation for this day to come. All the kids in Mrs. Ramirez's class, including Nancy Drew and her friends Bess and George, have gathered to watch Principal Newman dig up the time capsule that was buried over 30 years ago. But, when it's unearthed, a very important vintage doll is missing from the capsule. How is that possible? It's been buried this whole time. Did a classmate steal it before the dig? Nancy Drew and the Clue Crew are on the case!