Teenage Mutant Ninja Turtles, Season 2

Master Splinter:
(Narrating) A wise man once said, "The more one learns, the less one knows". My sons and I have learned many things of late. Much of what we learned, we experience through a remarkable window to the past. A history of an alien race, known as the Utroms. In a virtual reality, we witnessed as the Utroms transported their most dangerous criminal back to their home world to stand trial, only to crash land here on Earth, several hundred years. And in that past, we encountered one who resembled Shredder. Perhaps an ancestor or merely a phantasm. But even a phantasm can be defeated. My sons and I escaped that dangerous illusion, only to return to...a reality that promised to be more deadly!