Exclusive Sneak Peek: Davies' Men Come For Jackson

In "Zero Sum," Jackson learns his mother is missing in Africa, but before he can look for her, he and the team must contend with a hostile force that has overtaken their plane. Also, Jamie learns a shocking secret about Abraham on Tuesday, August 9 at 9/8c.

Watch all-new episodes of Zoo on Tuesdays at 9/8c on CBS.

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