This is an animation made by French students at ESMA school, during school project : Quentin Deleau, Lucie Foncelle, Maxime Goudal, Julien Paris et Sylvain Robert. The story is pretty simple, a precious pearl is guarded by few soldiers inside a big sandcastle. The soldier are made of sand too and only the pearl is real. One giant crab not made of sand starts to attack them and the great action starts. You need to watch until the end to understand what's really going inside this short animation movie.