The teacher and students of Class Three are so absorbed by the marine life they see while sailing on the ocean that they do not notice that they are being pursued by pirates.
While the students and teachers of Class Two are absorbed in looking at various zoo animals, a sneaky anaconda gobbles them up, until Molly sees what is happening and saves the day.
Josh forgot to bring the cocoa for the chocolate cake his class is going to make, but when he pulls the strings on his magic backpack, Josh and a friend fly to his uncle's cocoa plantation in Ghana.