It's the ultimate close encounter. There have been thousands of reported cases all over the world. But these claims are almost invariably dismissed by authorities with little or no investigation. Mounting evidence has revealed there may in fact be... (more) millions of victims—virtually all unaware they have been taken. What are the telltale signs of abduction? And why do aliens appear determined to keep their activities secret? From of lost time and recovered memories to terrifying accounts of alien surgery, join us as we reveal the hidden signs of alien abduction—on UNSEALED: ALIEN FILES.