Lost Property

S12 E305: When railway inspectors come to the Island of Sodor, they start their inspection on Thomas' line. Thomas, Annie and Clarabel are keen to show what they can do, but there are nothing but problems. To make matters worse, one of the inspectors is grumpy. When Annie discovers that he's left his gold watch on her seat, Thomas sets out to return it and that impresses the grumpy inspector.