The Outer Limits (1963)

S1E31 The Chameleon

Title: The Shapeshifter Plot: An undercover government operative grapples with his moral beliefs as he embeds himself within a group of extraterrestrials stranded on the remnants of a spacecraft. Torn between his duty and newfound loyalties, he must navigate the complexities of their existence while questioning the motives behind his mission. As he delves deeper into their world, the agent finds himself reevaluating his own identity and purpose.