Special Agent Oso Episode 28 The Sitter Who Watched Me / Potty Royale >Dotty trains Special Agent Oso to watch Wolfie walking to a hidden base in a pine forest, along with Musa, as quietly as they can. However, Oso shouts at Musa that Wolfie is approaching them but Wolfie catches Oso instead and then traps Oso in an automatic net as a result. This is when a new assignment is introduced to Oso. A boy named Aiden wants to go to preschool like his brother Julian, but is told from his mom that preschool is not for little kids, and the only way to be a big kid is to go to the potty all by himself. Aiden then tells his mom that he is willing to try, but he doesn't know how. It is up to Oso to help Aiden use the potty all by himself so that Aiden can prove his mom that he is ready for preschool.