Lost! When Stinky and Dirty get lost in a thick fog, they come up with new ways to "see" and use smell and hearing to successfully find their way home. Squeak When Dirty develops a squeak that keeps him and his fellow trucks awake, he and Stinky go in search of a solution and discover that while some sounds keep you awake, others are good for helping you sleep.

The show’s own verdict is on its page.