In this major scene, Stuart's mom tells him how she is getting deployed and doesn't know how long. She is the leader of the troops for the Air Force at that base and is going on a secret mission. He is left with a troop that's staying home, his dad is gone.
"I sat there feeling the blood drain out of my face" - Stuart Sept. 5 Page 139
This is the scene that causes all the drama. Stuart is driving underage first of all, then he goes above the speed limit because he was under the influence and he ends up hitting Billy his close neighbor friend. He gets into a ton of trouble almost costs his mom her job even though shes still gone.
In this final closing scene, his mom finally comes home from her mission. His dad also finally comes back from helping his grandmother. They rejoice with hugs. His father says he's going to move back in with them.