Opa wird Papa.

62-year-old company boss Anton is happily married to 41-year-old successful lawyer Johanna, his business is doing well and his daughter Marie and son David are finally standing on their own two feet. So it's time for his long-awaited move to the countryside and to tackle the renovation of a house by the lake. However, when Johanna becomes pregnant and he also becomes a grandfather, his focus changes and he decides to be a full-time dad this time. However, being a model dad and company director at the same time proves to be anything but easy, and so not only does he mess up an important job, he also falls out with his children...