Jonas lives in "The Community", everyone is equal and they have jobs to do. Families that are taking care of children must have one girl and one boy. He's going to be the Receiver of Memory during the Ceremony of Twelve. When someone says that they apologize, people would reply back, "I accept your apology".
I really love Gabriel and I'm going to save his life by escaping from The Community to prevent him from getting released.
After The Ceremony of Twelve, Jonas goes to his training and then begins to receive some memories from The Giver, for an example, a snow day with the sled.
Jonas learns that his Dad releases babies if one of the baby twins weighs differently.
That's snow, Gabe.
Jonas learns that Gabe is going to be released and he decides to save his life.
The Giver and Jonas make a plan to escape to Elsewhere. He told Jonas that he'll stay behind to help The Community. He stole his father's bike and Gabriel.
Jonas showed Gabe some snow from one of the memories that The Giver presented to him at his training. They made it to Elsewhere by a sled and Jonas hears some music for the first time.