Seven friends - three women and four men - meet for dinner. Everyone should put their cell phone on the table. No matter what message comes in - anyone can read it and listen to the phone calls. However, this leads to a lot of chaos.
This is the third and final part of the now famously successful trilogy, where Mr. Müller and his problem kids Chantal, Danger and Co. once again take up arms against their sworn enemy, the German education system.