In the midst of a heatwave, Dr. Shaun Murphy and Dr. Danica Powell are at odds when it comes to their patient's surgery. Their heated stalemate tests Shaun's patience and his willingness to compromise. Meanwhile, when the hospital loses power, Lea and Dr. Aaron Glassman are forced to come up with a quick solution or risk a total shutdown that could risk patients' lives on the 100th episode of the series. 

Drs. Shaun Murphy, Asher Wolke and Aaron Glassman meet a patient with an infected surgical sponge that was left in their abdomen. Meanwhile, Dr. Morgan Reznick must face her own past when she treats the victim of a sexual assault.