According to myth, cats have nine lives, and Alexander Catt II (also known as Lexi) has spent his former lives with scientists of medicine throughout history. In these adventures, Lexi witnesses medical breakthroughs and discoveries, and learns the value of hard word and integrity. In Lexi and Hippocrates Find Trouble at the Olympics, Lexi lives Ancient Greece, where he meets Hippocrates, the Father of Medicine. With companions Theo and his hound dog Cerberus, Lexi and Hippocrates travel to Olympia for the ancient Olympic Games. Together, Lexi and Hippocrates uncover treachery and help preserve the Olympic ideal of fair play.