The family of a Nazi Commander, moved from their home to be closer to father's job. The home was supposedly miles away from a concentration camp.
Bruno finds a concentration camp but thinks its a fun place. He gains relation with a jew he met at the camp. The jew, Shmuel, ended up working at the house Bruno lived in. Bruno then ended up getting Shmuel in trouble by a guard.
Bruno and Shmuel planned to go find Shmuel's father. Bruno wanted to help to make up for the mistake he made when he got Shmuel in trouble. Also Bruno was gonna be leaving so he wanted to help before he left.
Bruno dressed as a jew and got into the concentration camp to help Shmuel.
While looking for Shmuel's father they accidently got caught in the area where a group of men were going to "shower". The guards brought them all to a chamber telling them it was a shower.
Bruno's dad goes looking for Bruno and isn't able to find him because Bruno and Shmuel were burned in the gas chammbers.