Add Yahoo as a preferred source to see more of our stories on Google. The "Alien" franchise is an undeniable classic — a staple of the sci-fi/horror genre. The series features humans fighting for ...

The "Alien" franchise is an undeniable classic — a staple of the sci-fi/horror genre. The series features humans fighting for their lives as they're pitted against killer aliens with acidic blood.

We break down the "real monsters" of the TV series and its place in the franchise.