Description: Biff announces that he has a legal deed from the 1800s for Jennifer Parker's ranch and plans to evict her family, who does not want to be evicted. With the intention of helping his girlfriend Jennifer, Marty heads back, with Jules and Verne, to the Old West to find the truth to the matter. Once there, Marty finds out that the Parkers were swindled out of their property by an outlaw Tannen ancestor. Marty joins the gang of Thaddeus Tannen, hoping to prevent the scheme from happening. When returning to the present year with Jules and Verne, Marty angrily confronts Biff. After Biff angers Marty about evicting Jennifer's family from the ranch, the signature for the deed disappears, and Biff warns Biff Jr. that it is coming out of his allowance. After saving the Parker ranch, Marty gets finally kissed by Jennifer. Bill Nye Segment: How to make invisible ink.