Th tugs are supposed to go up river to bring lumber to a timber company that will turn the lumber into building materials that are to be used at a construction site in the main port. However, Ten Cents is wheezing mushroom clouds out of his funnel. Captain Star gives him the lite load to carry. The tugs go up river to collect the lumber. As they head down river to the port, Emily diagnoses Ten Cents with Coal Cold, a rare disease found only in tugboats. It infects the coal, and it can cause sparks. Ten Cents tries limit the amount of coal in his smokestack, but he sneezes again, and ends up setting his lumber barge on fire. The barge sinks beneath the river, but the lumber remains floating. The sparks from the lumber set the forest on fire. Billy Shoepack comes along, and he and Ten Cents