S12 E02

Vestigial Peter

Aired Sunday, October 6, 2013 · 30 min

Peter discovers that he has a vestigial twin, whom he names Chip, growing out of his neck. It's not long before Peter resents the fact that everyone seems to love Chip more than him, so he decides to amputate his twin. However, when Peter gets into trouble, he realizes he needs Chip more than ever.