Larry hasn't seen his friends at the Museum of Natural History in a very long time—so long, in fact, that he almost misses them completely! When Jedediah, Sacajawea, and the rest of the gang get shipped out to the Smithsonian Federal Archives in Washington, D.C., the magical Golden Tablet goes with them. Soon, the tablet falls into the wrong hands—and Larry's friends are in trouble! Can Larry get to the capital and save them before time runs out?