Saw Ep 5x01 last week some new bad guys are introduced, and some from last season are killed.
Boyd wanted to buy some drug, but the drugs did not show, instead they tried to just take his $.
So he then goes to the source, the source is killed and he winds up making a deal with the new guys who say they will only sell to him one time. He gives them the money up front, and now we have to wait on ep 2 to see what happens there.
Raylan is assigned to find a certain criminal since he has had dealings with the people the guy is know to hang with.
Another hillbilly crime family is introduced.
So in this ep the Season story arc is set up.
Also boyds wife is in jail and he is trying to get her charges dropped or reduced, not sure what will happen there, what he tried in ep 1 did not work.