A series of crises on Mitch and Cam's wedding day put Pepper to the test. Meanwhile, Phil gets an eye procedure before the celebration, and Claire embraces the role of best woman.
A diamond heist at an up-market jewellery store uncovers an elaborate plot involving murder and extortion. Evidence points towards a known criminal, but Jane thinks the wealthy family who own the store may be involved. Elsewhere, Rigsby and Van Pelt consider their relationship.
Richard Castle thinks a murder is a voodoo ritualistic murder when a silver coin is found in the mouth of an adult male murdered victim. When other deaths pop up including a young girl with a silver coin in her mouth, it's up to the team to find the connection.
Sara recieves a warning from T-Bag about Poseidon's henchmen, who could be tailing her. Licoln tries desperately to retrieve his passport so he can make his way out of Yemen.
Lincoln and C-Note search for the Sheik of Light, Michael and Whip attempt an escape from Ogygia, and Sara's investigation leads to an uneasy reunion with Paul Kellerman.