Rusty Saves the Day is the twenty-fifth episode ever made in Season 6.
Skarloey and Rheneas' line is neglected and when Rusty suggests reparing the line to the Fat Controller, he is given an ultimatum: repair the lines while blasting is going on in the slate mines or the line will be closed for good. The three work their hardest, but they are fighting a losing battle and Elizabeth is the first to notice. Rusty luckily tricks her into helping them and they finish the work on time.
- Rusty notes that Skarloey and Rheneas were not happy, but the two were smiling.