"We're headed to the world-renowned Lincoln Park Zoo in the heart of downtown Chicago for two massive projects. Buried electrical wires, dangling thousand-pound boulders and animal-safe build requirements all add up to two difficult projects, and to make matters even harder, the Pond Stars have only four days to get it all done."

More information on Pond Stars' "Big Bad Wolf" episode:

http://channel.nationalgeographic.co.../big-bad-wolf/

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