Duckman needs a new kidney. To get one requires a donation from a blood relative. He searches for his father, who he thought was cryogenically frozen. Instead he discovers that the man he thought was his father, wasn't. Using the power of the Microsoft Network (Blatant Plug!), the twins and Cornfed find where dad is currently living. Duckman and Cornfed travel there, only to find that his is a paranoid schizophrenic who's formed his own country.
Spoilers ahead. Coverage follows the scope labeled below.
Complete story — includes the ending
Duckman is in need of a kidney transplant from a blood relative, but the children are out for various reasons (Ajax doesn't have any, Charles and Mambo share one) so he turns to his cryogenically frozen father whom, it turns out, wasn't his father at all. He tracks down his real father (voiced by Brian Keith ), a paranoiac in the sticks with his "own country", and while he's staying with him a standoff with the government develops.