Everything is ready in the nursing home to celebrate Allan's 100th birthday, with guests, media and the mayor giving a speech. Just before the time comes, Allan escapes through a window, buys a bus ticket with a few coins in his pocket, and in the process steals a suitcase from a suspicious young man who asks him to keep an eye on it. It turns out that there is a lot of money in the suitcase... Thus begins the centenarian's extraordinary journey and adventure, full of tension and danger. But this journey does not only take place in the present, but also in Allan's past, as in his long life he found himself on the scene of almost all the most important historical events of the 20th century.