The episode carries a or 15 rating. According to the IMDb Parents Guide , content includes:

: By the end of the episode, Liam reveals the necklace he intends to steal and makes a bold offer: he wants Alison and her mother to move to Brazil with him once the job is finished, promising that no one will get hurt. Key Character Developments

In Season 1, Episode 4 of the 2025 British crime drama , the narrative shifts toward high-stakes undercover work as the central character, Alison, is drawn deeper into the criminal world she was hired to observe. Plot Summary

: Alison struggles with her feelings for Liam after they spend the night together. Meanwhile, the police—specifically Ashleigh and James—grow increasingly concerned about her loyalty as she begins to miss check-ins and hide information.

Watch the series trailer to see Alison's lip-reading skills in action as she begins her dangerous collaboration with the police: Code of Silence (Series 1, ITVX, 2025) Bingewatch YouTube• May 23, 2025

Note: There is also a 2017 series titled with an episode of the same name (S1E4), which focuses on a hair show and the aftermath of Otis's death. Code of Silence S1 E4 - Drama - BritBox

: Mild (a scene involving Alison and Liam in bed).