Open Season 3 is a 2010 American computer-animated buddy comedy film. It is the third installment in the Open Season film series, following Open Season (2006) and Open Season 2 (2008). The film was directed by Cody Cameron and produced by Sony Pictures Animation and Reel FX Creative Studios.
One spring morning, Boog awakens after hibernation and plans an annual guys trip to spend time with his male best friends. Unfortunately, Elliot has distanced himself from Boog since he had started a family with Giselle. They are now the parents of three children: Gisela, Giselita, and Elvis (with Boog now being the adoptive uncle). Boog is disappointed since everyone else wants to spend time with their families, which makes him go on the guys trip by himself with Dinkleman and Mr Weenie however, this soon leads him to a Russian traveling circus called the Maslova Family Circus.
While in the circus, Boog meets Doug, a lazy, self-centered, mean, scruffy grizzly bear who is tired of performing in the circus on the sidelines. He craves recognition as a full-fledged king of the forest, the ruler of wildlife. Thinking up a plan, Doug lies to his best friend Alistair that he won't forget his help and convinces Boog to switch his life in the forest for Doug's place at the circus. Boog accepts the offer, but the whole thing turns out a scam because all Doug really wanted to do was escape from the circus.
Meanwhile, Boog falls madly in love with Ursa (who thinks that he is Doug), a female grizzly bear who was born in Russia and can effortlessly walk on a tightrope, juggle, and dance (which Boog finds to be "bearvana"), but has no luck convincing her that he isn't Doug. She dares him to prove to her he isn't Doug by climbing up the high wire. Boog accepts the dare and climbs up the wire, but to his surprise, Ursa reveals she knew he wasn't Doug the moment he rode the unicycle (which Doug couldn't do). When Boog and Ursa begin working together, they obtain much more as a harmonious duet than it might seem at first glance. Meanwhile, Doug arrives at the forest and disguises himself as Boog by pushing his scruffy fur back with mud.
However, Gisela and Giselita get suspicious when they notice "Boog" treating the wilds like slaves, so they report to Serge and Deni and request they find Giselle for help and they do so. Afterwards, when Boog's best friends find out about Boog's disappearance when Doug's cover is accidentally exposed, they (as well as Mr. Weenie, a reformed Fifi, Roberto, and the other pets) put aside their differences and hatch a rescue mission to save Boog. Gisela comes up with the plan to save Boog and the gang go to the circus to go to rescue him.
That night, the wilds arrive at the Maslova Family Circus. They want Boog to return home, but he doesn't want to leave Ursa. Suddenly, a reformed Doug arrives, apologizes to Boog for tricking him, and reunites with Alistair. While Doug performs the circus acts for the audience, Elliot tells Boog he can stay at the circus if he wants to. Boog doesn't want to leave Elliot or Ursa, so he convinces Ursa to go live in the forest with them.
The next morning, Ursa enjoys life in the forest and becomes Boog's girlfriend, Gisela, Giselita, and Elvis' adoptive aunt, and Elliot and Giselle's sister-in-law. Finally, Boog, Elliot, and their male best friends go on the guys trip and sing part of Willie Nelson's "On the Road Again." In the ending credits, Doug and Alistair reveal a slideshow of them enjoying their tour around the world.