Ralph and Sandra Fisher, who run a show-animal business in Texas, had a beloved Brahman bull named Chance. Chance was the gentlest bull they'd ever seen, more like a pet dog than a bull. They loved him, kids loved him. He had a long career in movies, on TV, performing at parties. When he finally died, Ralph and Cindy were devastated. Around that same time, scientists at Texas A & M University were looking for animal subjects for a cloning project. They already had some tissue from Chance because they'd treated him for an illness. So Ralph and Cindy offered up Chance's DNA for the experiment. Second Chance was born. And he was, eerily, just like Chance. Except he wasn't. Which they found out the hard way. (21 minutes)