元初城游神卫?天妖门?灭妖会?煞? 东宁府大战之后,孟川上元初山之前,谜题能否揭晓——
An animated comedy about two-step brothers who find inventive things to do on each day of their summer vacation such as building a roller coaster out of materials you would find in your everyday home like popsicle sticks, indoor plumbing, etc. Unbeknownst to them, their pet platypus, Perry, leads a double life as a secret agent.