Star Trek: The Next Generation Cassette 64 - Time's Arrow 2

Time's Arrow, Part 2 Picard, Riker, Crusher, Troi and LaForge journey to 19th century San Francisco to find Data and return to their future. Meanwhile, Samuel Clemens interferes with Data's attempts at returning to his own time, determined he has come from the future to destroy Earth. Realm of Fear The Enterprise encounters the USS Yosemite, trapped in a plamsa streamer, her crew dead and missing. When Lt. Barclay is asked to join the Away Team, we learn that he is terrified of the transporter, believing he suffers from something called "transporter psychosis".