The Lucy Show - S5E2 LUCY AND THE SUBMARINE

Mr. Mooney leaves the office for two weeks of training in the Naval Reserve, but forgets to sign some important papers. Lucy tracks him to the submarine on which he will sail on maneuvers and, dressing as a sailor boards the ship in an attempt to get him to sign the document. The submarine leaves for sea before Lucy can leave the vessel and she's forced to pretend that she's just another sailor.