Brennan's father Max lands a teaching position at the Jeffersonian. When he ends up helping out with the murder case at hand, Brennan is noticeably bothered by his sudden presence in her professional life.
Emily Prentiss and Jordan Todd go undercover to profile a serial killer who has perfected his skill as a pick-up artist and uses his prowess to lure his next victims.
A new virus spreads through out all the computers threatening total annihilation, Mike is assigned the job to stop this virus from spreading. Only things become more problematic when KITT become a victim of the virus. Meanwhile, Sarah meets up with an old boyfriend and Mike has a distinct reaction.
A lawyer for the late Gustav Hoffer suspects his client's death was not part of a robbery gone wrong as was reported, but rather murder. He hires Emerson Cod and Ned to find out who killed Hoffer.
