Because Warrick naively assumed simple uniformed cop Hal Watson would have arranged a search warrant, the crucial weapon in the rape and murder trial on a neighbor against Michael Fife is dismissed as evidence in court. A.D.A. Jeffrey Sinclair can only get a 24 hours delay to present new evidence to build the case again. Nick brilliantly smooths emotional waywardness from Sarah and Warrick. New clues expected to reconstruct the case against Fife actually indicate he's probably innocent. An alternative culprit must be found, starting from Fife's car where the bloody knife was planted.

In the Mediterranean Casino, Ty Caulfield is speaking for guests that the casino will exhibit rare Japanese antiques from the Seventeenth Century owned by Mr. Yuri Yamamoto in the casino. Out of the blue, a woman cries and they see a body floating in the pool and a live wire at the edge. Grissom, Sara and Capt. Brass investigate the case and soon they find that the body is a CPR dummy. They hear the security alarm and find the guard wrapped up in duct tape, and the samurai sword is missing. They investigate the findings and return to the exhibition room to collect other evidences but the room is empty. The head of the casino security tells that the pieces have been transported to the casino vault to be in a secure place. Soon Grissom finds the sword hidden in an air duct and questions Yamamoto why a Nineteenth Century armor was together with the other pieces Surprisingly Yamamoto say that he has no armor in his collection. They go to the vault with Ty and find that all the casino money has been stolen, in a masterstroke. But their findings do not stop. Meanwhile, Catherine and Warrick go to an abandoned house with fame of haunted and find the corpse of Angela Sommerville with two holes in her jugular vein and drained without any blood. Further, there is no gore in the crime scene. Soon they learn that Angela used acrylic fangs and her friends belonged to a vampire "coven".

When a roller coaster derails in an amusement park, there are six victims in the parking lot. Grissom, Nick, Sara and Capt. Brass investigate the case and soon they find that five deceased persons were in the train, but the employee Jim Nevins died twenty-hours before with a head trauma. Grissom interviews the park chief engineer Woody and learns that the old roller coaster has good maintenance. Grissom shows a nut to Woody and he says that it would be impossible to cause the train derail since there are eight sets that would have to lose. Meanwhile, Catherine and Warrick investigate the murder of the thirteen-year-old Tessa Press that was found murdered but not raped. Her mother Raina tells them that Tessa used to go to the house of a friend twice a week and she had assumed that her daughter was with her friend. Now they need to find what has happened to her.