Jonas sees a plane flying overhead. This gives exposition on what is normal in the community and what isn't. It shows the community is afraid of anything not normal or different.
Jonas is selected to be the new Receiver of memory.
In a memory, Jonas has to watch a soldier die in order to teach him of warfare. There are multiple dead (red guys) and an army coming (gray guys on horizion).
Jonas runs away from the community with baby Gabe (in crib).
Jonas and Gabe keep running from the community, who sends planes after them. They get far enough away that the planes no longer come and they reach a mountain covered in snow. Atop the mountain is a sled.