Star Trek's Official X-Men Crossover Unleashed Marvel's Scariest Sentinel of All Time

Star Trek’s official crossover with the X-Men unleashed Marvel’s scariest Sentinels of all time. The X-Men’s enemies are many, and the Sentinels may rank as one of the scariest. These relentless mutant killers will stop at nothing to get their prey, giving them something in common with Star Trek’s Borg, and 1998’s Star Trek: The Next Generation/X-Men Second Contact fuses the two together to create pure nightmare fuel.