It Came from a Tick...
S04E04 - Airdate: 2013-10-18
Runtime: 60 min
A two-year-old girl has a mysterious lump on her neck; a mother-of-two is plagued by nausea and stomach cramps for four years before finally discovering what's wrong; a 5-year-old boy writhes in pain when his own body sends immune cells to attack itself.
Episode details and rating from TVmaze.