OPEN SEASON: SCARED SILLY opens with Elliot telling a campfire story about the legend of the Wailing Wampus Werewolf that lives in Timberline National Forest. Domesticated Boog is terrified by the story and decides to "chicken out" of their annual summer camping trip until he knows the werewolf is gone. Determined to help Boog overcome his fears, Elliot and their woodland friends band together to scare the fear out of Boog and uncover the mystery of the Wailing Wampus Werewolf.

Flint must quickly alter his plans for a romantic date with Sam after his monkey-cleaning invention goes awry.

Flint's mischievous gummy bear grows to 50-feet by using his new food-modifying invention.