S3·E18 Na Ki‘i (Dolls)

Episode recap

The episode titled “Na Ki‘i (Dolls)” opens with a pursuit in which Dog the Bounty Hunter attempts to apprehend a fugitive. During the chase, Dog witnesses a woman tumble from a balcony and die. The incident draws the attention of the Five‑0 team, who begin a homicide investigation. Evidence collected at the scene leads the detectives to learn that the deceased had been living a concealed second life as a roller‑derby athlete. The investigation turns toward the woman’s teammates, but the players are unable or unwilling to provide useful information that could identify a suspect or motive.

In response to the lack of leads, the team assigns Catherine to infiltrate the roller‑derby league. She assumes the role of the team’s jammer, a position that allows her to move among the athletes and observe their interactions while gathering intelligence that might reveal connections to the murder. Catherine’s undercover work places her in the midst of the sport’s competitive environment, where she monitors the behavior of the skaters and seeks any clues that could link the league to the victim’s death.

Concurrently, Doris returns to her residence and discovers a burglary in progress. The intruder is in the act of stealing a cache of sensitive information that Doris has been safeguarding. The break‑in forces Doris to confront the immediate threat to her personal security while also dealing with the broader implications of the compromised data.

The episode weaves together the two investigative threads: Catherine’s covert operation within the roller‑derby community and Doris’s effort to protect her confidential materials from theft. Both storylines underscore the challenges faced by the Five‑0 team as they pursue justice for the balcony victim and work to prevent further criminal activity. The narrative concludes with the team poised to follow up on the intelligence gathered by Catherine and to address the ramifications of the burglary that jeopardized Doris’s sensitive information.