Stacy Keach is the only reason this 2nd incarnation of him as Mike Hammer is watchable.
I was a huge fan of the original Stacy Keach Mike Hammer series. Along with a lot of TV movies he did with the same character, he created a pretty good little franchise for himself. That being said, this 2nd incarnation of this great detective is just not that great. It has quite a few earmarks of a low budget and the first is the actors. All of em except Shannon Whirry are just plain bad. Shane Conrad is an absolute joke in this. You can tell he got the job just by who his father was. Worse than the acting is the script writing. The dialogue is so bad it's not even borderline laughable or believable, it's just laughable and unbelievable.
Regardless of the fact that this show pale's in comparison to Stacy Keachs' original series, he's the reason this show is still worth a look. He plays the same character with the same flair. It's petty obvious that Keach brought this character back to make a buck. It was successful the first time so why not try again. It just wasn't as good this time around.
Most know when they hear "Mike Hammer" they think of Mr. Keach himself. There's a reason for that, he is Mike Hammer(sorta).