Sklenar tells PEOPLE of the "banter" and "shorthand" that Spencer and Alex have onscreen: "Julia and I just had that together ...

JULIA SCHLAEPFER: He told me it was gonna be ... What was running through your head while filming it? BRANDON SKLENAR: Um, don’t slip [laughs]. That fake snow is surprisingly slick.

This story contains major 1923 season finale spoilers! Okay y'all. I'm still reeling over the fact 1923 season 2 ended with ...