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.
- Vivian (Marianne Jean-Baptiste) receives troubling news from a doctor but does her best to hide her condition from the rest of the team. Sam asks her about it and tells her that she has been doing internet research on Viv's condition and she tells her to stay out of her business. Throughout the episode Danny (Enrique Murciano) is very worried about Viv and keeps asking her if she's okay. Meanwhile, the team investigates a missing woman who vanished after choir practice. After learning that she is transgender they wonder if something or someone from her past life is involved. They track down Stephanie's brother, friends, boyfriend and ex-wife on the search. After they find Stephanie (Sandra Nelson) and put her in an ambulance Vivian collapses.