Flynn and Vega identify a suspect in the death of an executive assistant, but there appears to be no motive.

A case from Cross and Flynn's past reemerges and causes distress for both of them, making Flynn realize they have to be honest about their history.

The team investigates a pilot who may be using his career for murder; Angie copes with Vega.

The team searches for a common denominator in three homicides.