Able isn't sure what to do now that he knows Beck's secret.
He thinks he could have stopped it before it happened. Maybe if he had paid more attention after Bodhi was killed, maybe if Beck had talked to someone, things would never have gone this far. Able knows it's too late to stop them now.
It doesn't help that Tron is involved. Able can't blame the program directly, but it seems that wherever he goes, tragedy follows. It's hard to think of him as a protector anymore. Tron couldn't even protect Yori, and that was before he was half derezzed. Now he's throwing Beck into all kinds of danger in his place; he won't be there to bail the beta out if things go wrong. And around Beck (and Tron), things tend to go wrong.
Able can't talk either one of them out of it, though he knew it was a lost cause before he tried. Tron and Beck are similar enough, he'll give them that- stubborn to their root-code, they'd fixed him with the exact same look when he'd brought it up.
Able has tried everything he can think of to keep the beta safe with no luck.
He'll have to settle for helping in smaller ways.
The mechanic paces between work stations on the garage floor, watching soldiers march through the streets beyond the entrance. He's spent most of the cycle doing the same thing from his office, memorizing the patterns Tesler's goons use to move through the city. He can't keep Beck from going out there, but he can make sure the path he takes is safe.
[The soldiers are gone. You better leave now,] Able pings.
Beck jumps. He's been staring at a bike instead of fixing it, lost in thought. Now shuts everything down, giving his boss a grateful smile as he rises to his feet.
[Thanks, Able.]
The older program hums. Watches him go.
[Sure. Just come back in one piece.]