One day before Waldemars big birthday party, the excitement rising in Mullewapp. Waldemar may withhold the chocolate-creamy strawberry pie that is to give it to celebrate, to eat up already, but then appeared unexpected walk on the quiet farm on barely. The rude boar bristle Horst and his gang have his eye on the birthday treats and take Mollywoop residents hogging. The three friends Waldemar, Franz von Hahn and Johnny Mauser guessed immediately: Here's wrong! But they are tricked by windy boar chief Horst and with a trick he sends them thereby unintentionally on a particularly adventurous bike tour. How can they now liberate their beloved home only by the invaders?