Lance Kerwin plays a dual role in this enjoyable ABC Afterschool Special updating of Mark Twain's The Prince and the Pauper. Humble delivery boy P.J. (Kerwin) discovers that he is the exact double of Preston (Kerwin again), son of the president of the United States. Each boy is envious of the other's lifestyle -- P.J. would like to be coddled and pampered, Preston yearns to escape the watchful eyes of the CIA -- so they decide to trade identities for a few days. Need we add that chaos ensues? Watch for a young Rosalind Chao in a small role.