Castle and Beckett look into the murder of a young mathematician gunned down with a 200-year-old bullet, sparking some wild theories by Castle about a time-traveling killer. When their investigation…

Scott teams up with an unlikely source in the hopes of putting an end to Kate’s evil plan.

When one of their friends goes missing, Scott and the pack travel into Mexico on a search and rescue mission.

Seeking answers, Scott, Allison and Stiles hear stories told by two unlikely narrators and discover a secret about the color of a werewolf’s eyes.

When victims with large social media followings are found dead in Maryland, the BAU searches for an UnSub taking on the persona of an Internet urban legend. Morgan and Savannah…