The family Verhoef have opened a Bed & Breakfast on their farm Vredehoeve where people can also hire boats. With one of those boats, ‘De IJsvogel’ (The ice bird) Tom, Mirjam and their dog Snuf go on a holiday whereby they visit local villages and markets. There Snuf notices the two boys Niels and Jimmy, who also have a dog, pickpocketing people. During a burglary the home owner sees two children and a dog fleeing the premises with a stolen boat and mistakenly suspects Tom and Mirjam to be the culprits. They are arrested by the police but manage to break out of the police station with the help of Snuf. Wanted by the local police, they set out to find the real culprits.