This is how Starscream's escape goes in Orion Pax and Nightfall Twinkle Part 2.
Optimus Prime: (voice) Previously on Transformers Prime: Friendship is Magic.
Megatron: Commander Starscream is dead.
[End of recaps]
Starscream: Optimus Prime and Princess Twilight Sparkle!
Orion Pax: Please.
Nightfall Twinkle: We mean no harm.
Starscream: No! Then what are you doing here?!
Orion Pax: Research.
Nightfall Twinkle: For Lord Megatron.
Starscream: Is this some kind of joke?!
Orion Pax: We do not understand.
Nightfall Twinkle: And why did you call us Optimus Prime and Princess Twilight Sparkle?
Starscream: Uh why wouldn't I?
Orion Pax: Because our names are Orion Pax and Nightfall Twinkle.
Nightfall Twinkle: We are far from being a Prime and Princess.
Starscream: You reminded me of two beings I once knew that's all.
Orion Pax: You're Starscream.
Nightfall Twinkle: And you are Megatron's second-in-command.
Orion Pax: Megatron told us you had been terminated.
Nightfall Twinkle: We thought what he said was true.
Starscream: Lord Megatron says many things, only some of which are true.
Orion Pax: You don't suppose our leader would speak falselence.
Nightfall Twinkle: Are you sure that's true?
Starscream: [laughs] You two are truly being kept in the dark aren't you?
[Transformers Prime: Friendship is Magic theme plays]
[Transformers Prime: Friendship is Magic theme ends]
Orion Pax: You speak in many riddles, Starscream.
Nightfall Twinkle: Please. Tell us what it is that you know.
Starscream: And in return....
Vehicon: Starscream! Surrender!
Orion Pax: Hold your fire!
Nightfall Twinkle: He's not doing any harm!
[Starscream transforms and escapes]
Vehicon: Remain in the lab.
Orion Pax: But...
Nightfall Twinkle: We...
Vehicon: Lord Megatron's orders.
[The Vehicon shuts the door and then transforms to follow Starscream]