On the Demon's Run base, Kate calms her infant daughter as Cleric guards and silence look on.

Demon's Run was a military base on an asteroid that handled with alien and other situations. Kate tells her infant of Aaron.

"Though he looks young, he has lived for hundreds of years and he is coming for them, so their captors had better beware as not even an army would stop him." Kate said.

A Silent takes the infant from Kate and puts her in a cot to be taken away. She gives her infant a kiss and starts talking about her father.

Twenty thousand light years away, on the flagship of the Twelfth Cyber Legion, Cyberman detect an intruder working his way to their command center, wreaking havoc with a vortex manipulator.

"Intruder alert! Seal this vessel!" A Cyberman said over the mic. They try sealing him off, but every attempt fails.

"Leave her!" Kate said as she was having her baby taking away.

"Intruder in level four… level five…. Eight… twelve…"

"You might not know him… but he's a brave warrior that has defended his life for what is good."

They prepare to confront him, weapons raised as the door opens to reveal Humphrey. Fearless, Humphrey starts talking.

"I have a message and a question. A message form Aaron and a question from me. Where is my wife?" Humphrey threatened.

The Cybermen don't answer.

"Don't give me those blank looks. You hear everything in the quadrant; and I will leave in peace if you just tell me what I want to know."

"What is Aaron's message?" A Cyberman said. Ships are starting to explode outside this one.

Humphrey simply says one thing. "Would you like me to repeat the question?" The Cybermen don't say anything else.

On Demon's Run, the Clerics have been on Yellow Alert over three weeks. The Fat One and the Thin One discuss the Aaron.

"I'm telling you, this guy is legend. He once scolded the Face of Boe."

"We're being paid to fight him. Praising costs more."

A Cleric named Lorna overhears them, smiles, and continues to sew on her break.

The Thin One and the Fat One pass the Headless Monks they are sharing the base with.

"We're not supposed to stare." The Thin One says. "If you try to look under their hoods, you'll be dead."

"But they can't really be headless." Lorna overhears them and explains.

"They believe the domain of faith is the heart and the domain of doubt is the head, hence the name "headless.""

The Fat One is then selected to be with the monks to complete a conversion tutorial.

"So you've met him." The Thin One says. "You've met Aaron."

"I met him when I was a little girl in the Gamma Forests, something that made me join the Clerics."

"What's he like?"

"He said "Run" a lot."

"Just run?" She nodded.