History Detectives

USS Thresher; Pete Gray Cartoon; Manhattan Project Letter (5x10)

Air date: Sep 10, 2007

The fifth season ends with documents that may be related to the USS Thresher, a nuclear sub that sank in 1963; storyboards that may be for a comic strip about one-armed baseball player Pete Gray; and handwritten documents that may pertain to the Manhattan Project during World War II.