Horatio and the team investigate how a date in the Everglades turned into a crime scene and apparently the victim was dying when he came running towards the couple. While talking to the man who tried to help the victim, they find out that the couple was there illegally. Meanwhile, Tara comes across evidence that suggests the victim took a bite out of another human, as in cannibalism, but not only that, the piece of human flesh he swallowed had a tattoo on it that Horatio links to the Russian mob…