Which hex episode is this?

What is the hex episdode where Cassie is at the club and she sees a guy and a girl and he looks into the fire and she sees he's possessed. They go to some back room and he's trying to rape the girl so Cassie uses telekinesis to spray the fire extinguisher all over him and she yells at the to run. Cassie runs into the ally and the guy is chasing her so she climbs over the fence. He climbs over the fence to so she blows something up and electrocutes the guy on the fence. If anyone can tell me what season and what episode this is that would be AWESOME!!!