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Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system.
First Air Date : Jan 30, 2012
Last Air date : Apr 30, 2024
Episode : 81 Episode
Season : 2 Season
Runtime: 15:14 minutes
Studio: YouTube
Country: United States of America
Cast: Samuel Ramsey
Crew: