Brennan begins to feel both dissatisfaction and discomfort with her work toward the end of the fifth season. She also sees some futility in her work, stating that no matter how many killers they catch, there will always be more. To help her gain new perspective, she later decides to head up an anthropological expedition to Indonesia for a year to identify some ancient proto-human remains, after mulling it over during the episode. However, 7 months later, she and everyone else return to D.C. in order to save Cam's job, and they all decide to stay.