Younger sibling Harry doesn't understand what "endangered" means in terms of animals, so his Nan buys him a book. He then wants to help save some animals, but has no way to to do so. Mum goes on the Internet with Harry, shows him pictures of lots of endangered animals, and suggests he make a poster which might encourage other people to help the animals, too. His bucketful of dinosaurs want to help save some BIG animals too. So they all started to draw with Harry -- blue whales, tree frogs, etc. Nan suggests they ask Mr. Bopsom to put it up in his shop window. But Mr Bopsom says they're too small, making Harry wonder if he's just too small to do anything useful. Then Mr. Bopsom has a great idea and asks Harry for lots more pictures, which he enthusiastically provides. The surprise is that Mr. Bopsom turned the drawings into cards to sell, with some of the money going to help endangered animals. The local newspaper writes up the story of the boy who proves that "even if you are as tony as a tick on the tail of a green turtle, you can still do something that makes a BIG difference." The end. ( )