This set includes 4 Explosive Barrel terrain pieces, as well as a brand new Mission (Blast 'em Back to Hell) to use them in your games of Shadows of Brimstone. Blast 'em Back to Hell - An overwhelming horde of creatures is approaching fast from all directions! If not stopped, they will overrun the entire area in a matter of hours, destroying everything in their path. Gathering up as many explosives as you can, you're only gonna get one shot at this. Collapsing one or two paths won't do, you need to set traps and lure them in to blow as many of these creatures back to hell as you can... and hope that you have enough firepower to clean up whatever is left. With a new mechanic for generating a Random Fixed Map and an 'insane' difficulty mode using Epic Threats for 5-6 Heroes playing the Mission, this Explosive Barrels set lets you pile more Enemies from your collection on the board at once than ever before! It will assuredly put more bang into your Adventures! -description from publisher's website