A creature feeds on the brain tissue of a young boy after he ingests worm eggs, and a killer works its way through the body of a Vietnam veteran, laying waste to his organs and lymph system.

To actually see the Monsters Inside Me episode you just listened to, stream full episodes on discovery+. Go to discoveryplus.com/monsters to start your 7-day free trial today. Terms apply.

Find episode transcripts here: https://monsters-inside-me.simplecast.com/episodes/sleeper-cells

Hosted on Acast. See acast.com/privacy for more information.