Rudy desperately needs a victory. What do he & Liesel plan to do to give him a victory? What happens?

Rudy needed a victory, which meant he needed to steal something back.

They had to steal something.
No.
They had to steal something back. It didn’t matter what. It needed only to be soon.

As a result, the two plan to steal from the Mayor's house, as payback for Rosa's being fired.