Five things to know:

Jason Blossom (Trevor 1

Stines) drowned after falling out of his canoe with his twin sister Cheryl (Madelaine Petsch) in episode 1 (3 February).

Wannabe musician 2

Archie Andrews (KJ Apa) is sleeping with his music teacher Geraldine Grundy (Sarah Habel) and they heard a gunshot on the day Jason drowned.

An autopsy on Jason 3

in episode 2 (10 Feb) revealed that not only was he shot… it was a week after his boat accident.

While investigating 4

Jason’s death, journalist Betty Cooper (Lili Reinhart) discovers dark secrets about her family.

Betty is being pro5

tected from Cheryl by her bestie Veronica Lodge (Camila Mendes), who’s new in town with her disgraced mom Alice (Mädchen Amick).