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When Gilligan (Bob Denver) comes across a crate full of plastic, the Castaways eagerly fashion the material into such creature comforts and utilities as golf balls, nails and tooth fillings. What Gilligan and the rest don't know is that the crate was prepared by the US government--and that it contains a new, top secret plastic explosive! In keeping with the series' third-season policy of casting professional athletes in cameo roles, this episode features LA Lakers star Rudy LaRusso as "Michaels."