The GrayCris Corporation thinks that Dr. Mensah ordered Murderbot to investigate their shenanigans at the terraforming facility in Rogue Protocol, so they take her hostage and hold her for ransom. This is unacceptable to Murderbot.
Murderbot travels to the space station—basically the size of a small city—where Mensah is being held captive and has to figure out how to rescue her without getting her killed and it caught. Dying would be fine for Murderbot so long as Dr. Mensah gets away. Actually, dying would be preferable to getting caught.
Along the way, Murderbot is forced to confront its feelings. Those damned interminable feelings.
Exit Strategy is a fine conclusion to the story arc that spanned a quadrilogy of novellas/short novels that opens the Murderbot Diaries series (Yes, book five, a standalone novel, is already out). There's bot vs. bot action, lots of hacking, and overloading of processor memory buffers. Murderbot's biting sense of humor is in full swing, and the humans who care about Murderbot have learned how to give it space. Ultimately, the question of Murderbot's personhood status is finally resolved.
If you've made it this far into the series, you know what to expect and won't be disappointed.