Scally is a visiting ship who brought treasures as cargo into the harbour. When he gave the tugs some of his treasures, it didn't take long for them to cause confusion so they decided to return their treasures to Scally.
The Treasures
Theodore gets a windspinner, Hank a big, huge, orange bumper, Emily a smokestack extension, Foduck a siren, and Bedford a fishing hat of some kind.