The circus pony Snoopy is ill and therefore can not perform in the circus. Bibi performs a witchcraft act instead and gets the pony as a reward. At the Martinshof, Snoopy quickly becomes healthy and instantly wins the hearts of all holiday children and the foal Felix. But the circus lacks a sensation number without Snoopy! Ringmaster Rondelli wants the pony back. Can Bibi, Tina and Alex manage to keep Snoopy?