Defeat Dr. M before time runs out.
― In-game description
"Battle Against Time" is the fifth and final Master Thief Challenge in Honor Among Thieves of Sly 3: Honor Among Thieves. It is also the final Master Thief Challenge in Sly 3.
It is a variation on the first part of the job "Final Legacy," where Sly must almost completely deplete Dr. M's Thief Meter. For this challenge, there is a time limit.