A wild office party at a high-profile medical technology startup leads to the shocking murder of the founder and CEO, and Morgan and the team are on the case. Meanwhile, a new co-worker at the precinct catches Morgan's eye.

Morgan agrees to show Ava around the LAPD, but things quickly take a dangerous turn when the precinct is held hostage by the friends of a recently convicted man. Can Morgan and the detectives outsmart their captors and lead everyone to safety?

The team investigates a mysterious young girl who was found attacked on a beach. Meanwhile, Morgan begins to let her guard down on her date with Tom, and Soto comes one step closer to finding out what happened to Roman.

A famous baseball newscaster is murdered, and the team is on the case. Meanwhile, Soto and Morgan meet with a potential lead to discuss Roman's disappearance, and Tom has some personal news to share with Morgan.

An anonymous tip to the LAPD sparks an unusual multiple-victim kidnapping investigation, forcing the team to rely on board games and puzzles to track down their suspect.