Sherlock helps a math genius from his network of ‘Irregulars’ experts after he stumbles upon a body while participating in a math puzzle competition. Joan attempts to extend an olive…

When Lily and Marshall forget to fix up Ted on a blind date for Valentine’s Day, they use one of Barney’s many discarded girls to see if they may become…

In this special two-part episode, the BAU is called to investigate after a wealthy couple is murdered in their home following a Super Bowl party. The team pursues what they…