Description: The series finale. After Biff Jr. steals the arrowhead that Verne was going to use for his "Show and Tell", Verne takes the DeLorean to find something really special. Not thinking, he procures a dinosaur egg which hatches back in 1990s Hill Valley. Verne, with the help of Jules and Marty, must hide the fast-growing dinosaur from his family and the rest of the town. The dinosaur is in danger when Biff and Biff Jr. capture it. They, in turn, sell it to Mr. Wisdom, who plans on dissecting poor "Tiny" and making lots of money. Marty and the entire Brown family save the baby dinosaur and reunite him with his mother in prehistoric times.