 Rachel, Bailey and the team travel to Yosemite National Park where a maniac brutally kills a mother and her two daughters. While circumstantial evidence points to a local outlaw biker, Rachel constructs a different suspect profile, one who feels remorse and might have sibling issues. Meanwhile, George s lingering substance abuse problem causes a dangerous embarrassment for Bailey and the VCTF when they get the wrong address of a suspect, just as an attractive congresswoman, Nan Archer, begins an investigation of the unit, and she is most impressed by Bailey. Also, Rachel s budding romance with Tom, her brother s drug counselor, hits a snag when Danny finds out.