This episode introduces Donna Robbins (played by Melissa Ponzio), who becomes the Chief's love interest and eventually his wife.

An interesting feature of the episode ( Chicago Fire , Season 2, Episode 12) is that it marks the very first mention of Chicago Med Hospital . This established the groundwork for the third series in the Dick Wolf franchise, Chicago Med , which would eventually begin airing in 2015.

Matt Casey attempts to convince his colleagues he is fit for duty while privately struggling with significant memory loss.

Following the suicide of a man she witnessed, Shay discovers he has left his entire estate to her—a plot point that sparks immediate conflict with the man’s brother.

In addition to its franchise-building role, the episode features several pivotal character developments: