Ben awoke to find himself begin dragged out of his torture device by a single stormtrooper. 

"Get up quick," said the trooper.

Ben obeyed in a haze and was led in a hurry down the corridors of the star destroyer. The stromtrooper seemed to be a frantic hurry which confused him. They ducked into a small maintenance room where, to Ben's great surprise, the stormtrooper uncuffed him.

"What is this?" Ben demanded.

"I'm getting you out of here," said the trooper, taking off his helm. The man looking back at him was about his age, dark skinned, short hair and a face full of sweat. 

"I beg your pardon?"

"This is a rescue mission I'm breaking you out," the trooper repeated impatiently. "But I can't fly a TIE fighter. I need a pilot, can you fly one?"

"I can fly just about anything," said Ben, still bewildered. "But hey back up, why are you doing this?"

The trooper hesitated. "This is the right thing to do. We killed a lot of civilians today. Something broke and I'm done."

Ben smiled and nodded. "Fair enough. You get me to a TIE and I can fly us out of here."

"I'll lead us to the hanger. Just pretend your my prisoner."

"Let's do this."

No one paid Ben and his accomplice much heed as they strode through the hanger. No one questioned orders around here. Ben had to admit he admired the discipline.

"Stay calm stay calm," the trooper muttered quickly.

"I am calm," Ben whispered.

"I'm talking to myself," said the trooper.

(Generally speaking the rest of this escape scene plays out the same as the movie except there is no BB-8 droid. Ben was just trying to get back to Jakku because the TIE fighter had no hyperdrive capabilities and so they had to find a different ship anyways. They get shot down by the ventral cannons and crash land. )