4 年前
视频简介
Unsolved Mysteries is back with new episodes with more perplexing cold cases and supernatural events. Unsolved Mysteries is from the creators of the original docuseries, Cosgrove/Meurer Productions, and 21 Laps Entertainment, the producers of Stranger Things.。海伦是一名科学家，一天，她接到了一通来自自己的神秘电话，随即便深陷于危险之中。迫不得已之下，她不得不闯入一个高度机密的设施并穿越时空回到过去，阻止一场谋杀。。
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教育教学
