Blackhat is the story of a computer hacker who has been put behind bars for good. He is going to stay behind bars unless he can help the US government find a dangerous hacker. He agrees to help on the condition that his sentence is commuted if they are able to catch this hacker. He takes them on a journey that goes around the world in search of someone who can cover his tracks in a heartbeat. He uses his skills with a computer and with a gun to figure out who is behind this latest threat to US security.