Chain Reaction

S3 E15: Santa finds himself on the naughty list after robbing a bank, but a Santa flash mob complicates his apprehension and the Major Crimes unit scrambles to figure out how things went so wrong. Sharon's kids (guest star Zarah Mahler and recurring guest star Ryan Kennedy) come to town for the holidays while Buzz starts training as a backup police officer. Recurring guest star Dawnn Lewis appears as Patrice. Lilli Birdsell, Annie Abrams and Carter Hastings also guest star.