On July 4th, Robby meets his replacement for his upcoming sabbatical, and a familiar face returns to the Pitt.

While nervously awaiting her deposition, King takes a tumble. Al-Hashimi tries to introduce new technology into the ER.

After a motorcycle collision, a husband and wife find themselves in the ER. Later, Robby bonds with a Tree of Life survivor.

With a nearby hospital shuttered on the busiest day of the year, Robby and team must field extra patients, including the victim of a parkour mishap.