Two months after Bigfoot returns home, Adam becomes overwhelmed with the attention his father's newfound fame has brought to the family. He is also struggling to confess his feelings to his crush Emma. Bigfoot wants to use his fame for a good cause. After some protesters send him a letter about trying to stop Xtract, an
Alaska oil company that claims to have zero environmental impact on wildlife, Bigfoot decides to travel to Alaska to help them. Adam helps his father by uploading a promotional video to social media. Swathes of protesters arrive to support Bigfoot. One night, while trying to get a closer look at the company after hearing a loud rumble, Bigfoot mysteriously disappears. Adam and his mother Shelly journey with Wilbur and Trapper to Alaska in their
van to find and rescue him. Arriving in Alaska, Adam and Shelly meet with Arlo Woodstock, the protester who last saw Bigfoot. Shelly follows Woodstock while Adam, Wilbur, and Trapper stay behind. While waiting in the van, they are ambushed by Xtract guards who tranquilize Wilbur and Trapper, but Adam escapes. Adam encounters a
wolf who threatens to hurt him, but he strikes a deal with Adam to help him. The wolf guides Adam to Xtract's worksite before departing. Xtract is revealed to be destroying wildlife by using small explosions to excavate oil. Adam explores the inside of the company and finds Xtract CEO Connor Mandrake planning to set up a
massive bomb so that he can excavate the oil easier, but this will destroy the valley. Adam records Mandrake on his phone to expose him. Afterwards, Adam is found by Woodstock, but Adam finds out that Woodstock actually works for Xtract and is responsible for taking Bigfoot and Shelly. Woodstock captures Adam and pushes him into the underground mines. Mandrake prepares the bomb. After finding Shelly and freeing Bigfoot, Adam escapes with them through the mines. Xtract drones are sent to stop them, but Bigfoot destroys them. While they escape, Adam manages to upload the videos, exposing Xtract online, before losing his phone. Adam turns back and defuses the bomb, but Mandrake gets a backup bomb that cannot be turned off to trigger the explosion. With help from Wilbur and Trapper, Bigfoot takes hold of it and throws it in the air, creating a signal explosion. Mandrake confronts them, but the news shows up in a helicopter, as does the police. Mandrake attempts to escape, but is interrupted by a
moose and thrown into an oil puddle alongside Woodstock. Some time later, Adam meets with Emma, who reveals that one of the videos he accidentally uploaded was the one exposing his feelings to her. He asks Emma out and she accepts. Emma kisses Adam while his eavesdropping family congratulates him. ==Voice cast==