The promo for the Bones Season 4 Finale aired on Thursday.
In the season finale episode, a body is found murdered at "The Lab," a popular nightclub, and everyone is a suspect. In an unusual twist of storytelling, Brennan, Booth and the Jeffersonian team take on various roles outside their normal duties, including serving as the nightclub staff as well as local law enforcement. Motley Crue, Ryan O'Neal, Brendan Fehr and Eric Millegan guest-star. The season finale airs on Thursday, May 14th.
You can watch the promo here.