The shepherd dog attacks a man after chasing him across the field. The man throws the dog off him, over the line. The dog makes sounds of pain as it dies in a weird way. Happens at about 23 min in to the 2nd episode. Does look pretty fake at point of death but sad sounds are real sounding.
You see a dead crow, deer, raccoon, and fox from 26:55-27:11 and again at 27:27. There’s also a squirrel at 27:48 and you continue to see various shots of the dead wildlife in the background until 28:24. Spoiler ahead in case you prefer to skip this scene: the thing possessing Arlo killed these animals, and in the process some rainbow, mystical poisonous goo formed, and the possessing entity said that they need to drink the poison.
Lots of deaths in E2. Multiple people shown already killed, at least 1 character graphically killed after she stepped over the line. Another man shot by a main character.
Cheating is mentioned, seems to be past tense.
Spoilers already, but in the main family we seem to follow the guys wife knows her husband cheated but the cheating husband states "she doesn't know with who" later in episode 1.