After the introduction (Ch 1) and the initial conflict (Ch 2), Chapter 3 usually solidifies the main plot arc.
"I know you got it. But I want to." Soda walked over, holding out his hand for the maul. There was a stubborn set to his jaw that Darry recognized. It was the same look Soda got when he refused to take a sick day from the stable, or when he insisted on walking home in the rain.