A serial killer who jumps trains and targets people living near the railway is the subject of a BAU manhunt. Meta Golding ("Day Break") guest stars.
Brennan and Booth investigate the college-basketball world to determine who is responsible for the murder of a player on a nationally ranked team.
Jane and Maura must overcome obstacles to find the killer of a 16-year-old girl; Jane has couch issues; Frankie sees UFOs.
A decomposed body found in a tub of acid at a naval base leads Gibbs to deduce that an impostor is serving aboard one of the nuclear submarines.
Team Scorpion is tasked with uncovering a mole inside the CIA whose judgment is clouded by matters of the heart and is being coerced into stealing deadly chemicals. Also, in preparation for the case, Paige gives Walter a flirting lesson.
