Early on in this episode, Stefan says the following to Tessa: "I think I still need to be drunk to understand this story." And, basically, that's what this entire episode boils down to. The first half of it is so exposition heavy it's unbelievable. There is so much standing around and explaining in the first ten minutes in particular. Let's look at the plot.
So, basically, we open on the day Silas is going to die. Silas wants to destroy the other side before he dies so that he can join Amara. Tessa wants to kill him before he destroys the other side, so he'll be trapped in supernatural purgatory. Got it so far? So, Silas wants to destroy the anchor, which will destroy the other side. He, Silas, and Jeremy (along with ghost!Bonnie) all go to a warehouse to find this anchor. Meanwhile, Silas has trapped Stefan and Tessa in a cabin together until sundown so that they can't come after him.
You see how that took me one paragraph to explain? Well, in the show, it takes like ten minutes of exposition. I'm not even exaggerating. Anyways, let's take a closer look at what happens next.