Dirty Objects, retitled James in a Mess in American releases, is the twenty-third episode of the first season.
James teases Toby for his shabby paintwork, but when Toby cheekily reminds him of the bootlace incident, James in furious and vows to pay him out. Unfortunately, he concetrates so much on the matter that he allows his trucks to push him down Gordon's Hill and into some tar wagons. Toby and Percy clean up the mess and, as a reward, Toby and Henrietta are given new coats of pants, while James is left in disgrace.
- Henrietta (does speak)
- The Viaduct (deleted scene)