The trailer for "Bones" season 12 has just been released and it shows Agent Seeley Booth worrying about Dr. Temperance Brennan, whose life is in danger after getting kidnapped by Zack Addy.

As the final season of "Bones" premieres in January, viewers will find Booth doing all he can to get his wife back. In the trailer, Dr. Temperance Brennan's former intern, Zack Addy, kidnapped her and is ready to kill her.

"He took her and he's going to kill her," Booth says in fear. He is completely rattled upon learning that Zack Addy is actually the serial killer known as "The Puppeteer." Their team has been tracking down this serial killer since season 10, and now that the truth has come out, he already has one of their own.

This is not the first time that Zack Addy was already associated with a killer. It can be recalled that in one of the previous seasons, The Gormogon also used and institutionalized Addy.

According to reports, Booth and his group have yet to confirm if Zack Addy is really the serial killer. However, he is petrified that Brennan's ex-intern might kill his wife now that she is in his hands.

"Bones" season 12 will see the return of Betty White as Dr. Beth Mayer and Stephen Fry as chef Gordon Wyatt. A recent report also confirmed that Cam and Arastoo will finally tie the knot next season.

While FOX has yet to announce the premiere date of the new series, fans are already excited to know how the storylines of the Jeffersonian crew will wrap up.