Seventeen Years Ago.

Fifteen Years Ago.

Fifteen Years Ago.

Fifteen Years Ago.

Fifteen Years Ago.

Fifteen Years Ago.

Eleven Years Ago.

Ten Years Ago.

Five Years Ago.

Dean Pelton initiates an investigation into an anonymous bandit; Jeff is suspicious when someone makes a confession.

When a body is found in a barrel, Holmes and Watson launch an investigation into the mafia’s ties to the murder. Meanwhile, Sherlock attempts to make amends with Detective Bell.

TV host Anderson Cooper; from "Saturday Night Live", comedian Bobby Moynihan; musical guest Will Hoge.

Sarah receives good news about a job; Jasmine is less than thrilled when Crosby opens his home to Oliver Rome, whose band has reached a breaking point; Amber is faced with a painful reality.

Leslie comes to terms with her last day in office and plans for the future with Ben. Chris and Ann find out the sex of their child, Andy comes home from London, and Tom looks to the future.

Alex risks a dangerous surgery on a seemingly inoperable tumor to save a young boy’s life. Meanwhile, Joel struggles with the challenges of being Chief of Surgery as Charlie struggles with the spirit of Alex’s dead brother Luke.

Sheldon must learn how to relax when he is forced to take a vacation; Leonard tries to support Penny when she quits her job; Bernadette needs to replace one of Stuart's comic books.

Chris Christie's bridge scandal deepens, Robert Gates's "Duty" has harsh words for Obama, and Jeff Skoll discusses his film company, Participant Media.

From "The Secret Life of Walter Mitty", actor Patton Oswalt; from "Black Sails", actress Hannah New.

A life hangs in the balance after Hagen tasks Neal with his final assignment.