Little Bear's Adventures of Thomas & Friends: Calling All Engines!

Little Bear's Adventures of Thomas & Friends: Calling All Engines! is another upcoming Little Bear/Thomas & Friends crossover to be made by Hiatt Grey.

Plot
Summer is coming since the engines are looking forward to taking holidaymakers around Sodor. One day, the Fat Controller announces that an airport is to be built on Sodor, which will bring more holidaymakers than ever. Thomas and Percy go to the site of the new airport, only to discover that 'Arry and Bert are on the same job.

That afternoon, Thomas goes to the timber yard and finds 'Arry and Bert there. As they boast that their job is very important, Thomas doesn't think so and biffs their flatbeds just before the crane drops the timber. Whilst Thomas and Percy are shunting trucks, Diesel confronts Thomas about the trouble he had caused for 'Arry and Bert and boasts that he too has an important job.

After shunting trucks of bananas for Diesel as a prank, Thomas and Percy go to the Smelters to collect some steel girders. Upon arrival, they see that Diesel 10 has returned and are so scared that they run away. On their way home, Thomas and Percy express concern to see the Sodor Suspension Bridge is not painted and the new airport is only half-built. Worse still, Tidmouth Sheds have been demolished to make way for the new sheds, but since Thomas gave Diesel bananas the renovation is running late. The engines are forced to sleep elsewhere, with James sleeping at the Coaling Plant, Edward sleeping at the Quarry with Diesel, Henry and Percy sleeping at the Smelter Yards, Gordon sleeping under a tent and Thomas sleeping at Knapford Sheds with Emily. That night, a fierce storm sweeps across Sodor and causes havoc, including the collapse of the suspension bridge. The next morning, the Fat Controller tells the engines that the storm damage must be cleared up before the work on the new sheds and the airport can continue.

The next morning, Thomas is sent to collect some iron beams for the suspension bridge from Brendam. Upon arrival at the suspension bridge, Thomas feels tired and declares that the beams need to be placed. When Diesel wants to do it, the foreman decides to let Thomas do it. Thomas manages to lower the beams into place, much to Diesel's fury.

When Thomas goes to collect paint for the bridge, Diesel biffs Thomas's flatbed so hard that paint splashes all over Thomas, who is so angry that when sees Arry, he biffs him into a pile of gravel. In retaliation, Arry biffs James under the coal hopper. The matter escalates until all the engines are fighting. By the end of the day, everyone is dirty and no work has been done.

The Fat Controller is angry at the delays and tells the engines that no holiday makers will come to Sodor. This leaves the engines deeply worried over their recent actions. As a result, several of them dream what might happen to them if no holidaymakers come to Sodor and the engines are no longer useful. James has a dream that he turns into a carnival game, Gordon turns into a playground, Edward turns into a scarecrow and Percy turns into a Roller Coaster. As for Thomas, he has a dream on how to make things better. In his dream, he sees Lady and Rusty working together. As Lady tells Thomas about teamwork, Thomas goes off to find Mavis as soon as he wakes up.

Thomas finds Mavis at the wash-down and tells her about his plan: the Diesels and steam engines must work together to save the new airport and their home. Mavis explains that they must talk to each other first, so Thomas suggests to have a meeting at the coaling plant the next day. When Thomas and Mavis tell the engines about the meeting, Thomas decides to tell Diesel 10, but gets cold wheels and backs down. The next day, Thomas races to the coaling plant and gets there, just to see 'Arry and Bert almost calling the meeting off as the engines start to argue about who is to blame for starting the trouble. Thomas explains that they must work together and at last the engines put their differences aside. When Harold brings the Fat Controller, Thomas explains that the steam engines and Diesels have finally agreed to work together.

Very soon, the new airport is complete and the first aeroplane is sent to Sodor, but when Thomas' trucks come off the rails, they hit the water tower, which collapses to the ground and cracks the runway. The workmen quickly fix the runway, but find that they need George to finish the job and with Harvey on the other side of Sodor there is no chance of the aeroplane landing. Thomas quickly has an idea and rushes off to find Diesel 10. Thomas asks Diesel 10 to help them and tells him that he will be the most useful engine of the day. Diesel 10 is hesitant at first, but eventually agrees and follows Thomas to the airport. Mavis, Percy, 'Arry and Bert are surprised to see Thomas and Diesel 10 working together. Seeing Diesel 10 working alongside a steam engine convinces 'Arry and Bert to finally respect the steam engines themselves. With the aid of the other engines, they clear up the mess and Thomas collects George to fix the runway.

With the runway smooth again, the aeroplane lands at last. The engines have learnt that teamwork runs a railway, not opposition about their differences. That evening, the engines are happy to see Tidmouth Sheds rebuilt, especially Emily when she finds that she is staying at Tidmouth Sheds from now on.