chunk: Brian suspects Stephen, but later spots a burn in the shape of an electrical socket on Adcox's back and reveals his suspicions to his brother just before an alarm. When Brian realizes Adcox has heard their exchange he jumps aboard Truck 46 after borrowing some turnout gear. Stephen confronts Adcox about the deadly backdrafts during a multiple-alarm fire at a chemical plant. Adcox admits he set the fires to kill associates of Swayzak because Swayzak was benefiting from the deaths of firefighters. When an explosion destroys the catwalk they are on, Stephen grabs Adcox's hand while hanging on to the remains of the catwalk. Adcox requests Stephen let go of him, but Stephen loses his grip on the catwalk. Adcox is killed and Stephen is mortally wounded. Stephen dies on the way to the hospital with Brian at his side, his final request being that Brian not reveal that Adcox was behind the fires.