This is how Keeping the Overlord from getting the Dark Spark goes in My Little Pony: Fight for the Dark Spark.
[Twilight and the others hurry on]
Twilight Sparkle: ???
Optimus Prime: Come on! [???
Twilight Sparkle: Okay, here's the truth. You know that Dark Spark they're looking for? I accidentally brought it here. We tried to get it back, but Pythor had a secret plot, and now the Overlord's right behind us and he's trying to kill us.
Princess Celestia: Is that true?
[The Dark Spark jumps up and down inside Starlight's saddlebags]
[Celestia skids to a stop]
Twilight Sparkle: Try to think of something to distract him!
[Celestia turns and sees the Overlord]
The Overlord: Hey! Watch it! [growls in frustration] Idiot!
[Celestia grips her teeth and her horn sparks]
[Twilight and the others arrive at the Castle of Friendship]
[Twilight starts casting the transportation spell]
[The Overlord and Pythor arrive]
The Overlord: There they are!
[The ponies and Autobots turn and gasp]
[Celestia's holograph appears in the room]
[The Overlord climbs up another pole with his four arms and grabs another door]
[The ponies and Autobots are carried into a tunnel]
The Overlord: Give me that Dark Spark!
[The door is shut]
[The Overlord crashes into it]
[The ponies and Autobots arrive in a tower]
Optimus Prime: Follow me.
[They follow Optimus through the tower]
[Optimus leads them to another door]
[The Overlord arrives]
Optimus Prime: There he is. Come on.
Pinkie Pie: ????
Smokescreen: [???] Oh, sorry.
Pinkie Pie: ???