After a government agency makes first contact with aliens in 1961, alien refugees live in secret on Earth by disguising themselves as humans in the New York metropolitan area. Men in Black is a secret agency that polices these aliens, protects Earth from intergalactic threats and uses memory-erasing neuralyzers to keep alien activity a secret. Men in Black agents have their former identities erased, and retired agents are neuralyzed and given new identities. After an operation to arrest an alien criminal named Mikey near the Mexican border by Agents K and D, D decides that he is too old for his job, prompting K to neuralyze him and look for a new partner.
