A Leslie Kies

Ruzek witnesses a tragic accident on an icy bridge, leading Intelligence into a dark, sinister case involving sex trafficking.

A recent loss creates a rift between Booth and Brennan, as they deal with their grief in different ways. Meanwhile, an old flame from Brennan’s past comes to visit.

Bravo Team partners with the British Special Air Service to rescue passengers on a hijacked plane who are taken hostage by terrorists.

Leona and Reece look to raise cash in order to salvage ACN and thwart Blair and Randy. Will gets a surprise at the White House Correspondents' Dinner, while Charlie trades visions with ACN suitor Lucas Pruit. Maggie's EPA scoop makes it to News Night. Sloan and Don try to keep their relationship a secret from the new HR veep.

The International Response Team travels to Paris to search for an unsub who is targeting Americans who live there.