"We produced $250k worth of food last year. We sell most of it wholesale, so we don't get a terribly high price for it."
The title says they make $13k per week, which would be $676k... so $13k must be just during the weeks they produce. And it seems to be based on the grocery-store price of that food, rather than the actual wholesale price that they're able to sell it for.
I wanted to watch at least enough to understand how the title is misleading. If two people could make $13k/week on an acre there would be a hell of a lot more people doing it.
It's still cool though, they've clearly worked hard and made great use of their land.