S03E10: The Luck of the Fryrish

After a string of bad luck, Fry ventures into the decaying ruins of Old New York to regain his lucky seven-leaf clover from his childhood, only to find that his brother Yancy Fry had stolen not only the clover, but Fry's identity as well. Fry sets out to exhume his brother's body, but discovers the startling truth about Yancy instead.