Join Adam’s family once more on the adventure of a lifetime! A few months after their reunion, they are happily living together – men and animals – and Adam is slowly getting used to his new powers. But Bigfoot decides to leave again to save a valley from the evil oil company X Tract and disappears - Shelly, Adam, Wilbur and Trapper decide to investigate and find out exactly what is happening there…
The charismatic Sir Lionel Frost considers himself to be the world's foremost investigator of myths and monsters. Trouble is, none of his small-minded, high-society peers seems to recognize this. Hoping to finally gain acceptance from these fellow adventurers, Sir Lionel travels to the Pacific Northwest to prove the existence of a legendary creature known as the missing link.
Adam, a thirteen year old outsider, sets out on a daring and epic quest to uncover the mystery behind his long-lost dad. He quickly discovers that his father is none other than the legendary Bigfoot, who has been hiding in the forest for years to protect himself and his family from HairCo., a giant corporation eager to run scientific experiments with his special DNA. As father and son start making up for lost time, Adam finds out that he too is gifted with superpowers beyond his imagination.