Gareth Williams

While investigating a case where bodies are found in the middle of the woods, the team discover that the suspects have created a new sport.

Jane and Kim investigate the murder of five DEA agents in Corpus Christi, and Jane goes on a date with a beautiful woman associated with the case.

When Kate comes down with appendicitis on Christmas Eve, the Pearsons take her to the hospital, where they run into Dr. K, who they realize needs their support; Kevin celebrates Hanukkah with Sloane's family.

The escalating situation in North Korea puts Mac's leadership to the test as the country faces the possibility of nuclear war.

A supposedly random murder case is reopened, after a letter sheds new light on the case. The victim's mother finds evidence that suggests that there may have been a motive to her son's death after all.

Simone leads the investigation when a murderer claims someone close to the squad; Russell questions Simone's approach to the case; Donna quits her job.