The third episode of FBI: International's third season, "Magpie," takes the Fly Team to the glamorous locale of Monaco, where a lavish celebration turns into a tragic hunt for a murderer. The episode opens with a sweet sixteen party at the Lambert Estate, meant to celebrate the coming-of-age of Emily, a wealthy American teenager. However, the revelry is cut short when Emily's mother, Diane, is found dead, setting off a race against time to find her killer.

The investigation leads the team to interview Diane's best friend, Melissa, and the videographers who captured the last moments of the party. A crucial piece of evidence comes to light when the videographers reveal they have audio footage of the murder. This clue propels the team into a deeper investigation, uncovering secrets and lies among the elite of Monaco.
Vo's interview with Emily, who is grappling with grief and guilt, adds a layer of complexity to the case. Emily's secret relationship with Theo, a boy from a poor background, is revealed, and it becomes clear that Diane was not aware of this relationship. This revelation leads the team to question whether Emily's boyfriend, Theo, could be involved in the murder.
As the team delves deeper, they discover that Armand Lambert, Diane's brother-in-law, had a motive for murder but was actually trying to hide his fraudulent activities. His desperation to cover up his crimes leads the team to the realization that the true killer is still at large.
The plot thickens when the team uncovers that Diane's ex-boyfriend, Connor, had been blackmailing her with compromising photos. With Diane's inheritance making the photos worthless, Connor's motive for murder becomes clear. The team races to find him before he can harm Emily, who is now his hostage.
The tense hostage situation plays out in a local store, with Vo taking the lead in negotiations. The team's quick thinking and strategic planning are on full display as they attempt to outsmart Connor. Vo's bravery and cunning are highlighted in her attempts to humanize Emily to Connor, using her own relationship with Theo as a point of connection.
The climax of the episode is a heart-stopping confrontation between Vo and Connor, with Raines arriving just in time to save Vo from Connor's deadly grasp. The episode ends with a bittersweet resolution, as Emily is promised protection by the Monaco police and Vo and Raines's relationship takes a new, more personal turn.
"Magpie" is a gripping installment of FBI: International that keeps viewers on the edge of their seats. The episode expertly weaves a tale of wealth, betrayal, and the lengths to which people will go for love and power. The performances are compelling, particularly Vo's portrayal of a determined agent willing to risk everything to save a life. The episode also delves into the personal lives of the characters, adding depth and nuance to the series' already rich tapestry.