Shadow hunter Ostrich has been given the important mission of locking up the magical Summer Shadow suit once and for all. But the shadow chest mysteriously disappears from Ostrich’s truck.

Best friends Agnes and Ailo have grown tired of playing the same game over and over again at the boring camping site, when they stumble upon a magical rhyme online. The rhyme is supposed to draw out the Summer Shadow! Soon, Agnes and Ailo need to act fast to stop the magical suit from playing its tricks all over the camping site.