At the opening of a butterfly exhibition, a mysterious woman approaches the rangers with a plea for help. A rare butterfly species in the rainforest is on the brink of extinction due to devastating wildfires. The rangers must locate the cocoons before they hatch, so the butterflies can be safely relocated. Once in South America, the mission turns out to be far more difficult than expected. The rangers leap from one adventure into the next: they have to prove themselves as tango dancers and football stars, brave wild rivers and towering mountains, and face off against bulls, crocodiles, piranhas, and venomous spiders. Along the way, they meet a monkey who falls head over heels in love with Moes — and turns out to be guarding a secret map that just might help the rangers complete their mission…

The big end-of-term play is approaching. Tobias is somewhat anxious, but with Mees Kees at the helm, everything should be just fine. The class looks forward to rehearsing in the afternoons and to making beautiful scenery - until they find out that Principal Dreus has chosen a terribly boring medieval play. Moreover, it is to be staged in a dusty room within a nearby retirement home. But Mees Kees wouldn't be Mees Kees if he didn't put his own twist on things...

Casey is a student teacher who gets his very first placement in class 5b. He is not sure how to teach yet, but thankfully the children are more than willing to help him.