S4, EP14 "Past, Present, Future"
The wait is over as Conrad and Nic welcome the arrival of their baby girl; Raptor's life begins to fall apart and he is forced to turn to Cain for help; Devon and Bell work together on a complicated surgery that may allow them to save multiple lives.
S4, EP13 "A Children's Story"
On the day of Nic's baby shower, Billie takes full control to make sure it goes smoothly; Devon and Leela stumble upon an apartment fire, where they assist in getting victims safely to Chastain; Leela gets a chance to prove her skills to Raptor.
S4, EP12 "Hope in the Unseen"
With Nic's due date steadily approaching, she and Conrad plan a relaxing day off; Devon stays by Rose's side as she starts her clinical trial and things take a turn for the worse; Kit is under pressure to bring Chastain out of debt.
S4, EP11 "After the Storm"
When a tornado touches down in Atlanta with Chastain directly in its path, the entire staff goes into crisis mode; Conrad and Nic work on an injured EMT; Devon and Leela become trapped with a man who has severe head trauma.