When Andy, Maya and Dean respond to a call, they find an injured woman with amnesia; but soon into the treatment process, they realize there is much more to her story. Meanwhile, Captain Sullivan takes Ben and Jack on a house call that quickly becomes a close call for the patient they're treating, while Ryan may not have seen the last of his father, Greg.

When an RV crashes into Station 19, the team races against the clock to save lives and secure the building's compromised structure. Meanwhile, a surprise delivery arrives at reception