Magnum, P.I. (1980)

S3E21 ...By Its Cover

Magnum and TC find themselves tricked by a former acquaintance into transporting a collection of encyclopedias. Unbeknownst to them, the books serve as a clever disguise for a significant shipment of marijuana hidden inside. As they navigate this unexpected situation, the duo must figure out how to handle the consequences of their unwitting involvement in the drug trade.