Bones Episode Details!

Episode 4x01 "The He in the She"

Two hippies fish out a skeletonized wrist. Cam, Booth, Brennan and a grad student go to the scene to investigate. The lab is using some of Brennan's brighter grad students until they hire a permanent Forensic Anthropologist. In this episode, grad student Vincent Juarez is working along the team. Brennan doesn't seem happy with this tasking and sends Vincent back to the lab even if Cam brought him along. Vincent also has a hard time around Cam because he makes lame jokes and uses familiar terms that will not please Brennan. At first, the team believes the body is that of a female, 40-year-old Patricia Ludmuller. Further investigation proves that Patricia was born a male. Brennan and Booth still have therapy sessions with Sweets. Hodgins and Angela also appear.

Source: SpoilerFix