Rosie and Caillou are happily playing together with toy trucks. It's going well, but then Rosie starts grabbing things such as action figures out of Caillou's toy box. Caillou takes them from her and she cries, so he gives them back to her. He goes downstairs and finds Daddy in the kitchen cooking something. He complains about Rosie taking his toys. Daddy suggests that he share them. He tells Caillou to wait a little while and come back for a special surprise. Caillou is annoyed that Daddy isn't listening to him, so he goes to Mommy, but she also suggests that he play with Mommy. Really annoyed now, Caillou decides that perhaps if he gives Rosie something to do on her own, then he'll be left alone to do what he wants. So he goes upstairs and creates a playfort for her, but she disappears and he gets to thinking she's playing hide-and-seek. He ends up going on a wild-goose-chase all around the house and looking outside too for Rosie, but it's a game he can't win. Rosie isn't hiding in one place, she keeps moving about such that Caillou can't find him. Caillou starts to get worried, so his parents help him out and they eventually manage to track Rosie down to the playfort that Caillou set up for her. Caillou tries to join her inside, but it ends up falling over. Mommy and Daddy decide that they'll play hide and seek with Caillou, but then Daddy remembers his surprise. So they all go downstairs and enjoy the surprise - gingerbread cookies and then they all play hide and seek together, with Mommy, Daddy and Rosie hiding together and Caillou looking for them all. (thetvdb.com)