In the primary storyline of tonight’s episode of “Brooklyn NIne-Nine,” Captain Holt assigns Jake and Diaz to Boyle’s DOA case; Santiago warns Boyle that Jake’s a horrible secondary due to his inability to take orders and give up control. Although Jake wants to prove Santiago wrong, he’s quickly taking lead at the crime scene investigation, deciding that it’s an natural death case while making a string of lazy fat jokes due to the victim’s size.
Doyle easily rolls over, but Diaz takes Jake aside and tells him to lay off from bulldozing Charles on the lead. Jake petulantly takes a backseat until he spots the attractive medical examiner Dr. Rossi (Mary Elizabeth Ellis) and shameless flirts with her (over a dead body). He volunteers to “follow up” with Dr. Rossi over dinner while Doyle is running the investigation, and Boyle thinks Jake’s embracing his status as second banana.