Just a Regular Irregular Elementary : Season 3 Episode 3
TV-14 CBS 1h 00m int(0)
Aired: November 13th, 2014 @ 10:00 PM EST on CBS
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 branch after she learns about Kitty’s past.