Bernadette Inez O'Brian Schwartz is back with her friends Annie, Keisha, and Megan, aka The Lunch Bunch. In this third adventure, Bernadette finally gets the puppy she has been dreaming of for so long. She asks her Lunch Bunch friends to help out at her street's garage sale to raise money to save the animals of the rainforest. When school ends, the four friends decide to go to the same day camp. Bernadette discovers that she can indulge her love of science anywhere when the local frogs go missing and she and the other campers use "scientific method" to find out why.