How do I go about r and r ing a bad freeze plug?

How do I go about r and r ing a bad freeze plug? My sons 1998 Dodge Durango had a cracked radiator. We have replaced the radiator and started refilling the system and there she blows, a steady stream of fluid coming from the front most freeze plug on the passenger side of the block. Is there an easy way to remove one of these? I remember wrestling with one years ago and I seem to remember it being a pain in the a__!