Here is an alternate take on Sodor's Legend of the Lost Treasure (Crossover Style).

Thomas, Spike and the Crusaders smiling, having saved anyone from the dynamite. Marion, Jack, Alfie and Oliver then arrive and start cheering for Thomas, Spike and the girls

Marion, Jack, Alfie and Oliver: HOORAY!

????: Furious THOMAS THE TANK ENGINE! SPIKE THE DRAGON! APPLE BLOOM, SWEETIE BELLE AND SCOOTALOO!

We find out that voice has come from The Fat Controller, who is looking furious

Thomas: Nervous Uh-oh...

Spike: Worried Oh, boy...

Apple Bloom, Sweetie Belle and Scootaloo: A little scared Oh, no...

The Fat Controller: Really angry WHAT ARE YOU LOT PLAYING AT NOW?! I thought that you five could learn to be more responsible if I sent you to work here!

Thomas: Trying to explain But, sir! This time it's really not our fault! We-!

Spike: We're innocent this time! It's-!

Apple Bloom, Sweetie Belle and Scootaloo: We didn't do it! We didn't-!

The Fat Controller: Far too angry NO, THOMAS, SPIKE, GIRLS! I've had quite enough of your excuses! Go to your shed immediately, Thomas! And you can stay there for the rest of the afternoon! You, Spike, go to Great Waterton and give the sheds a lick of paint! And you three, I'll let your parents and older sisters decide on your punishments! And everyone else can get back to work! Storms off to his car

At first, Thomas and his friends just stands there, looking heartbroken. However after about ten seconds, their faces change into angry frowns

Thomas: Having enough No! We will not, Fatt Hatt!

The diggers all gasp in shock, Ryan and Ocellus also gasp and Duck and Lyra watch on, eye wide. The Fat Controller freezes after hearing that. He then marches back to the tank engine, dragon and fillies

The Fat Controller: Looking cross I beg your pardon?!

Thomas says nothing, instead he wheeshes steam at his controller, covering him in soot!

WHEESH!

The Fat Controller: Coughing and spluttering

Ryan: Shocked Thomas! What are you doing?!

Ocellus: Also shocked Are you crazy?!

Again, Thomas says nothing, he, Spike and the CMC just then glare coldly at The Fat Controller. The Fat Controller then glares angrily at his number one engine and friends

The Fat Controller: Even more angry THOMAS! GO TO YOUR SHED RIGHT NOW!

Thomas: Blows his whistles crossly and puffs forward No, I won't! YOU are the one who is causing confusion and delay! YOU are being really horrid!

Spike: Angry You’ve ignored us for the last and final time!

Apple Bloom: Ticked off We've had it!

Sweetie Belle: Angry and upset You're a miserable jerk!

Scootaloo: P----d off YOU ALL CAN’T EVEN SEE HOW FLAWED YOU ARE AND YOU ACT AS IF NOTHING WAS WRONG!

The Fat Controller: Points a stern finger at Thomas, Spike and the fillies How dare you talk back to me like that!

Thomas, Spike and the CMC: Furiously HOW DARE YOU ACCUSE US OF BEING RESPONSIBLE FOR THIS WITHOUT ANY F--KING EVIDENCE!

The Fat Controller stares on in shock as does everyone else

Thomas: Really p----d off ALL THROUGHOUT THIS WEEK, YOU HAVE BEEN NOTHING BUT A A--HOLE!

Spike: Also p----d off YELLING AT US ALL THE TIME AND MAKING OUR LIVES A MISERY!

Apple Bloom: Furious TAKING THOMAS' BRANCHLINE AWAY, LETTING GORDON GET OFF SCOTT FREE, GIVING ROCKY CREDIT FOR FINDING THE PIRATE SHIP WHEN IT WAS REALLY US AND NOW YOU'RE BLAMING US FOR SOMETHING THAT WE DIDN'T EVEN DO!

Sweetie Belle: Also furious WE CANNOT BELIEVE HOW STUPID YOU ARE!

Scootaloo: Downright p----d off YOU'RE A FRAUD, YOU KNOW THAT?! YOU'RE A FAKE! YOU'RE NO HEAD OF THE RAILWAY, FATTIE!

The Fat Controller: In rage LISTEN HERE, TANK ENGINE, DRAGON, PONIES! YOU THINK YOU CAN DO THESE THINGS, BUT YOU JUST CAN'T!

The five friends look down, still angry

Thomas, Spike and the CMC: Angry We hate you...

The Fat Controller is shocked and visibly hurt at what his number one engine and friends have said

The Fat Controller: Taken aback ....W-What...?

Thomas: In fury WE HATE YOU, TOPPY!

Apple Bloom, Sweetie Belle and Scootaloo: Downright angry WE HATE YOU! WE HATE YOU!

Spike: P----d off YOU, TOPHAM, ARE A BABOON!

The Fat Controller: Gasps in pure shock Me?!

Thomas, Spike and the CMC: Getting even more angry YES, YOU! BABOON! BABOON! BABOON! BABOON!

The Fat Controller: More visibly hurt ...I don't think you realise what you're saying…

Thomas, Spike and the CMC: Now leaking tears of anger and heartbreak BABOON!

The five friends stop and start panting in anger and heartbreak. Everyone else is looking on with worry

Jack: Worried Thomas...?

Alfie: Worried Girls...?

Marion: Worried Spike...?

Ryan and Ocellus: Both worried Are you...?

Spike: Leaking more tears You know what? We can't deal with you anymore...

Apple Bloom: Shaking with anger We're done...

Sweetie Belle: Voice breaking We're done working here...

Thomas: Starts puffing away as soon as Spike and the Crusaders climb aboard into his cab Don't bother coming after us...

Scootaloo: Trying not to cry Leave us alone...

The tank engine and his friends then rush out of the yard just as they start crying

Duck: Thomas! Wait!

Lyra: Spike! Girls! Come back!

But it's too late as the five friends had already left

Headcanon:

The events of Season 8-9 (With the exception of The Washouts and Best Gift Ever) of MLP and Rainbow Roadtrip are not canon.

Scootaloo gets adopted get Bow Hothoof and Windy Whistles after her original parents and two aunts pass away.

Pear Butter and Bright Mac are alive.