The remains of a maritime museum security guard are found in the Florida Everglades after an attempt to steal an obsolete 17th century nautical chart fragment used to find treasures. In order to solve the crime, Booth seeks out Walter Sherman, a former Iraqi soldier with an uncanny gift to unearth anyone and anything. Meanwhile, Brennan puts Sherman's remarkable skill to the test, and Booth harbors cold feelings toward his former military comrade.

15-year-old Jane Doe, who is hearing impaired and unable to communicate, is found on the streets covered in blood and wielding a knife, leading the team to believe she is responsible for a recent murder. Meanwhile, Angela keeps Hodgins in the dark regarding the details of her pregnancy.