The twinbrothers Sietse and Hielke Klinkhamer want to raise money for their ill friend, Marieke.

Twin brothers Sietse and Hielke watch their beloved boat being seized due to pollution. Meanwhile multiple animals are found dead at a care farm. The twins start a search for the suspects.

In 1994, the Royal Youth Theatre of Antwerp made a theatrical musical based on the Belgian comic series 'Suske en Wiske'. Professor Barabas is working on a fantastic new invention: the Star Tapper. The invention is not quite ready yet, but Wiske, curious as ever, can't wait to test the device. Of course, this goes completely wrong, because Krimson, meaner than ever, is also back. An adventurous journey takes the friends via the time machine to the Mayans, ancient Egypt and China.

Two young boy twins receive a boat of their own by a stroke of luck. It turns out to be very fast and they use their boat to help out their friends.