Dan Louis

The hospital doctors become fascinated with Dr. Herman's case when Amelia gives a lecture detailing the intricacies of the surgery. Arizona and Herman continue to bond over the amount of cases they are trying to complete before the big surgery. Meanwhile, Bailey brings them a case of a pregnant woman who is close to her heart.

Walter must swim through the deadly La Brea Tar Pits when Team Scorpion helps a woman trapped in the tar before she runs out of oxygen. Also, without Paige's knowledge, her mother, Veronica (guest star Lea Thompson), "helps" Ralph maximize his troop cookie sales.

When Mid-life Alex helps his daughter, Abby, with a family tree project, he's tempted to find his biological father. Also, Young Alex must perform at Ron's family reunion talent show, and Older Alex meets Older Abby's new boyfriend.

Jack attempts to get a confession out of Kent at the police station. Paco and Wilkinson follow the evidence at hand, which points to another suspect. Karen's budding success as a reporter comes to a tragic end when the team learns she was a beheading victim. Vicki struggles with the knowledge of her father's affair and sneaks out to perform on the Strip, managing to escape Kent's hunting ground. Jack and Paco await evidence that will bring Kent to his end.