I predict half the episode will be Hop Pop trying to find the box because he can't find it in the same place he buried it. Then he'll deliver the box safe and sound and he's going to confess he was lying to Anne the whole time, stating his reasons. Anne will get really upset about it and probably leave the house because she wants to be alone for a moment.
At the end, she'll forgive him because she knows Hop Pop still went through the trouble of getting a new f
wagon, taking the family to Newtopia, risking his and the kids' lives, just to help Anne find a way home. Because they are family.