N-COUNT [usually plural]（多指小说或电影中的）反角，坏人，恶人 A bad guy is a person in a story or film who is considered to be evil or wicked, or who is fighting on the wrong side. You can also refer to the bad guys in a situation in real life. （多指小说或电影中的）反角，坏人，恶人 [informal]
In the end the 'bad guys' are caught and sent to jail.