What is going on in Ravenswood? What mysteries does the town have to offer? Can a handful of people make a difference in a town beset by goodness knows what? The "Pretty Little Liars" spinoff, which focuses on Tyler Blackburn's Caleb get started tonight following the "Pretty Little Liars" Halloween special. Caleb is going to be helped by new buddy Miranda and then Remy (but not the mouse in the Pixar movie). Stay tuned after "Pretty Little Liars" and see what trouble they make... or fix... or witness.