My back day always starts with deadlifts.
Deads 3-4 sets 12,10,8,6
super set seated hamstring curls 3 sets 12,10,8
with Pull ups 3 sets to failure
Superset Bent over rows 3 sets 12,10,8
with lying ham curls 3 sets 12,10,8
Superset seated rows 3 sets 12,10,8
with Lying ball hastring roll ins (1 leg) 3 sets failure
This was my last back and hamstring workout