The clumsy Pat and Mat are back! The two men face all kinds of challenges. For example, Pat and Mat try to bake pancakes in a hilarious way, they try to catch the apple thief by securing the apple trees. They even experiment with a homemade flying machine! And well, why would you go to a car wash when you can build one yourself? Experimenting is not easy for the two neighbors, but they just can't help themselves.