While the town of Pickax is swept up in its sesquicentennial celebrations, Koko has developed a strange new hobby: he drops himself from balconies, occasionally landing in the oddest of places. When a young man comes to visit his wealthy relatives, Koko plummets straight on to his head! Meanwhile, a hurricane is brewing, and the visitor's family members soon fall deathly ill. Qwill has his work cut out for him because Pickax - as foreshadowed by Koko - is about to be hit by a bombshell.