Booth and Brennan seek help from his old friend to find a map which could lead them to the suspect behind the crimes.
"Bones" will introduce Geoff Stults' Walter Sherman when Booth gets in touch with his old friend to help him solve a murder case. Sherman is a former Iraqi soldier with an uncanny gift to unearth anyone and anything.
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. With Sherman's help, as well as that of his colleague, Ike Latulippe (guest star Saffron Burrows), and his legal advisor, Leo Knox (guest star Michael Clarke Duncan), the team is led to tattoo artist who points them in the direction of a tough young woman.
But when the woman is found murdered with remnants of the map lodged in her remains, the team discovers centuries of history linked to the map and the suspect behind the crimes. Meanwhile, Brennan puts Sherman's remarkable skill to the test, and Booth harbors cold feelings toward his former military comrade.
Speaking about Booth and Stult's not-too-good relationship, Sherman said, "Booth has always been resentful of that because I arrested him, and he's always wanted to get me back, but he's also known that I'm really good at finding things." His character also flirts with Brennan as he shared, "I kind of fall in love with her. And then she has a minute of like, 'Wait, do I like him?' "
"Finder" has been set as a backdoor pilot of the crime drama series. The spin-off episode will air Thursday, April 21 on Fox.