Provide a list of the throughout the series. Explain the Chief Grissom rivalry in more detail. Let me know how you'd like to continue the story! Chicago Fire season 6 finale recap: The Grand Gesture

After a fertility doctor reveals that another pregnancy could be fatal due to an aneurysm, Gabby Dawson insists on trying anyway. Casey’s secret visit to an adoption agency sparks a major blowout, leading Gabby to inquire about a volunteer paramedic opportunity in Puerto Rico.

Joe Cruz plans a romantic trip to tell Sylvie Brett he is still in love with her. However, after Brett is traumatized by a particularly brutal call where a woman dies in her arms, Joe decides to prioritize being her friend instead of pursuing his romantic plan.