Amanda Pays

Mulder and Scully join forces with an inspector from Scotland Yard when a man with pyrokinetic powers stalks members of the British aristocracy.

"Plastic surgeons, best friends and business partners Dr. Sean McNamara (series star Dylan Walsh) and Dr. Christian Troy (series star Julian McMahon) run McNamara/Troy, a prominent South Beach, Florida, practice. A seemingly conservative family man, Sean has come to realize that his financial success can't mask his family problems, including his relationship with his disillusioned wife, Julia (series star Joely Richardson), and troubled son, Matt (series star John Hensley). Likewise, single and promiscuous Christian is discovering that his lucrative career and good looks no longer bring him enough emotional satisfaction, as evidenced by his failed engagement to sexy and confident Kimber Henry (series star Kelly Carlson--not appearing in this episode). Opinionated Dr. Liz Cruz (series star Roma Maffia) serves as the team's anesthesiologist. In the fourth season premiere, Sean and Christian celebrate a milestone surgery and receive an interesting proposition from patient Burt Landau (recurring guest star Larry Hagman), a wealthy medical venture capitalist who wants bigger testicular implants, and his much younger wife, Michelle (recurring guest star Sanaa Lathan). Meanwhile, Julia reveals devastating news about her unborn child to Sean, leaving him full of fear and doubt. Phone sex operator Cindy Plumb (Kathleen Turner) requests that the surgeons make her voice more youthful. And tortured Christian redecorates his apartment after a troubling appointment with his psychiatrist, Dr. Faith Wolper (recurring guest star Brooke Shields).

Mary and Lucy narrowly escape serious injury when a drunk driver smashes into their car.

Barry finds himself face-to-face with his nemesis, the Man in the Yellow Suit, a.k.a. Reverse Flash, who killed his mother. Barry is frustrated when the Reverse Flash escapes, but Dr. Wells and Cisco come up with a plan to trap him. All they need is bait, so they turn to Dr. Tina McGee (Amanda Pays) from Mercury Labs to help. Meanwhile, it's Christmas at the West household and Iris is in full holiday cheer. Eddie gives her a surprising gift but also leaves her with a question that could change her life. Joe joins the search for the Man in Yellow and ends up in the crossfire. And Caitlin finds Ronnie.

Barry is surprised when Felicity Smoak arrives from Starling City along with her boyfriend, Ray Palmer, who flies in as the Atom. They’ve come to visit S.T.A.R. Labs as Ray needs help with his suit. Their timing turns out to be fortuitous because it’s all hands on deck after a meta human named Brie Larvin unleashes hundreds of robotic bees to attack and kill her former co-workers, including Dr. Tina McGee. A group dinner with Barry, Felicity, Ray, Iris and Eddie turns into a disaster.