Mark Llewellyn

Patrick investigates a double murder in Palm Springs that has all the hallmarks of a serial killer with a personal connection to Patrick.

The team searches for Jack's friend Max Cassidy, a longtime FBI agent who disappears after leaving an emotional message on his wife's answering machine about the murder of his partner, Jimmy Haggerty. The squad investigates whether the industrial espionage case that Max and Jimmy were working on is connected to Jimmy's murder and if Max is now a victim of Jimmy's killer.

After learning that a missing man named Alex Stark lied to his girlfriend of three months about owning a cleaning service, the team wonders how he was living so luxuriously. They soon discover that he has ties to an illegal poker club and that he emptied his account of $48,000 three days prior to his disappearance. Jack goes undercover as a player at the club but, unbeknownst to his team, he is taken hostage.