Freshly released from jail, Anon has returned to Ponyville; the townsponies don't want him back — but there is another, far more pressing, issue to contend with.
On Father's Day, Rarity offers to take Applejack with her and her father to their annual brunch, but Magnum makes a large misconception and believes Applejack is Rarity's marefriend, here to approve of his daughter's choice in love.
Derpy Hooves is actually a pretty usual mare. And she's here to tell us about Ponyville, and it's many Shenanigans. We're just 5 guys looking to piss each other off.
You are...you can't remember, so lets just go with Anon. You are Anon, and you have arrived upon Equestria as the result of a magical spell cast by Twilight Sparkle...your new roomate.