Arnie goes to a cookout with the Olivers. The clams are bad and those who have eaten them become ill with paralytic shellfish poisoning. Lily, one of her friends and her father John, who is a shaman, are fine because they haven't eaten the clams. John helps the people by making them get rid of the clams they have eaten, thus lessening the effect of the poison. Kate and Franz fly in with the doctor who brings the extra medical aid that is needed. The seriously ill are transported to the hospital. Thank's to John's quick thinking, everyone will recover.