Missing Trucks - S10.E25

In an act of kindness to his brother, Rheneas decides to pull Skarloey’s trucks for him as he is most busy. But Rheneas also has his own load to take, and finds that it’s simply all too much on him, upon attempting to climb a difficult hill. So Rheneas parks Skarloey’s trucks in a siding, and simply delivers his own load first. When he returns for Skarloey’s lot, it has disappeared!