Complete story — includes the ending
While investigating one of Sherlock's cold cases, Joan spots an out-of-place rock in the murder victim's garden. She enlists a geologist to study the photo. Joan eventually steals the rock. It contains a very rare complete dinosaur fossil worth millions. The rock is later stolen from the police evidence room. Tracking down a very high-end smuggler, Sherlock and Joan find the man murdered and the fossil smashed to pieces. They eventually determine the curator of a natural history museum committed the murders to destroy proof of a scientific theory that would have ruined his reputation. Meanwhile, Sherlock has his hands full as a sponsor when Randy's addict girlfriend turns back up in his life.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Elementary episodes. HTML formatting and reference markers removed. · Content license