Samson & Gert enthusiastically start their annual Christmas show, but the Mayor, Van Leemhuyzen and Alberto have not cleaned up their mess yet! Fortunately, Angela, Alberto's niece, sees to it that the three friends still do this. Meanwhile, the mayor discovers that the village is allowed to participate in the big dog competition. This is the perfect opportunity for Samson & Gert to finally outwit Jean-Louis Michel and his dog Fifi! Van Leemhuyzen and Alberto find the treasure map of Captain Lena Lang during the cleanup. When they complete three tasks, they find a treasure... With Ruth Beeckmans as Angela, Albertooooooo's niece.