This is how the present day and Thomas' introduction goes in Trainsformers: Engines In Disguise.
[In the present day]
[She is thrown to the ground by a hunter]
[The hunter leader grabs her pendant and they drive off]
[In the jungle, the hunters are attacked by a mysterious figure, the last one running off leaving the leader on his own. A head pops up in the shadows and startles him. The leader and the figure, who is a Trainbot, get into a fight and the Trainbot is the winner. The truck is returned to the village. The boy picks up the pendant that was taken from his mother and sees a hooded figure in a tree]
American boy: The Ghost of the Jungle.
[A few years later]
American boy: [to Meg Griffin] There. That's where I saw him.
Meg Griffin: Thank you. You'd better get home now.
American boy: Do you know the ghost?
Meg Griffin: He wasn't always a ghost.
[Meg leaves the boy on his own and finds the track near the fallen tree]
Meg Griffin: Hello? Anyone here? Hello?
[Meg falls down a hole and is caught by something or someone at the bottom]
Meg Griffin: What?
Manly voice: It's a long way from the city to just drop in.
[Meg looks up and sees she's in the hands of Thomas the Tank Engine (AKA OpThomas Prime)]
Meg Griffin: Thomas.
Thomas: Yes. It's me.
[Later, they sit by a campfire]
Thomas: So you came all the way down here to look for me?
Meg Griffin: Yes. But actually, I was already here on business. But then local legend started sounding familiar so I decided to snoop around.
Thomas: What kind of business?
Meg Griffin: Ancient artifacts. Some Ex-Con with too much time on his hands has his heart set on a collection of 3000 year old statues and all of them represent villains you've faced in the past.
Thomas: Well, you always did run with a strange crowd, Meg.
Meg Griffin: Well, our strange crowd hasn't been the same without you. Things aren't looking so good back home.
Thomas: How bad could it be? Edward's probably got everything under control.
Meg Griffin: Well, Edward's taken up the job of being an IT tech support.
Thomas: But Edward's a genius. Why would he take a job like that?
Meg Griffin: At least he's keeping busy.
Thomas: Well, if he's doing that, who's keeping an eye on Percy?
Meg Griffin: Percy's gotten into the um... entertainment business. He's big hit.
Thomas: Alright. Let's hear it. What's James doing?
Meg Griffin: Nobody knows. He just sleeps all day.
Thomas: But what does he do all night?
Meg Griffin: I don't really know. Your training period ended a year ago. And Optimus says you don't write anymore.
Thomas: Optimus sent me down here to become a better leader. I can't go back a failure. Besides, these people need me more than my brothers do.
Meg Griffin: If Optimus Prime were here, he would ask you, "What is your heart telling you?".
Thomas: I don't know. I just know something's missing.
Meg Griffin: Your brothers need you, Thomas. They're lost without you.
[She looks down and then up and sees he's gone]
Meg Griffin: Thomas?
[She stands and looks around. The screen fades to black]