Jack and the team investigate the disappearance of Stephanie, a singer in a church choir. Stephanie's choir director informs the agents that the missing woman had been unusually emotional at the last choir practice and requested to perform a particular hymn on Sunday but then failed to show up to sing it.

Seven years ago, a thirteen-year-old girl named Amber Bryce went missing, and suspicion fell on her boyfriend, then-17-year-old Curtis Horne. When Daisy Thorpe, who had become obsessed with getting justice for Amber's death, also ends up missing in the present day, the team is called in to investigate.