CDC may be dealing with a potential deadly virus outbreak in Las Vegas, and Sara and Greg may have been exposed to the virus while investigating a crime scene.
Greg and Sara arrive at a bloody crime scene and Sara sees that the victim is bleeding from her eyes. She believes it is a viral epidemic and calls the CDC. The CDC Emergency Team arrives and isolate the area and use a ultraviolet light to "clean" the area. The CSIs are to be quarantined for two weeks in a specialized hospital. Soon Dr. Heather Lanning from the RyneLab Biomedical visits Ecklie and Russell and explains that she was assigned to know what virus they are dealing with. The victim is considered the "Patient Zero" and the virus is identified as Ibare. When they identify the victim as Jack Weaver, they see that he worked in RyneLab Biomedical with Dr. Heather Lanning and they try to find why she omitted that she knew him. Soon they dig his past and discover dark secrets in Bolivia.—Claudio Carvalho, Rio de Janeiro, Brazil
