The Stare Masters is an episode of Thomas and Friends' Adventure Chronicles based on the MLP: FIM episode "The Stare Master".
Henry and Edward offer to watch over Peter Sam, Duncan, Sir Handel, Philip, Stephen, Diesel, Den, Dart, Paxton, Apple Bloom, Scootaloo and Sweetie Belle while James has an important job to do over on the mainland. But they find they are hard to control until they save them, Thomas and a missing Troublesome Truck from a Cockatrice at the Old Quarry.
The episode begins with, Henry, Edward, Peter Sam, Duncan, Sir Handel, Philip, Stephen, Diesel, Den, Dart, Paxton, Apple Bloom, Scootaloo, and Sweetie Belle. James comes in and tells them he has to go do an important job over on the mainland. Sir Handel says they were having a sleepover at Knapford and try to find their special talents and jobs in the nighttime but James says he won't have time to watch them. Henry and Edward offer to watch over everyone. James says they need to be responsible for them, and be careful, reminding them they can be very troublesome sometimes. Edward says they'll be fine with them and the young engines immediately race off to the sheds.
The two set off to find them. This proves difficult until they find the CMC and their engine friends. Edward and Henry try to keep them under control but they won't listen. When Edward and Henry manage to get them to their sheds after a run in with a lot of loose Troublesome Trucks, the engines are left to rest. But they wake up and find that one Troublesome Truck is missing from the yard and set out to find it. This allows the trouble makers to go out and make mischief.
While looking, Henry realizes that one of them should have stayed behind. Edward goes back to the sheds only to find them missing. He goes back to Henry and tells him. The two engine realize that the youngsters have gone into the Old Quarry to find the missing Troublesome Truck.