Following an officer who assumes a new identity as Oli, a gay 14-year-old boy from Bedfordshire seeking to explore his newfound sexuality on social media platforms. Before long he is contacted by a number of adult men, some of whom continue engaging with him even when he reveals to them that he is a child. As the conversations quickly turn sexual, the team behind the undercover officer race to identify the app users who are trying to arrange to sexually abuse 'Oli".