This show even in its fourth season has not lost any of its explosive action, in fact I think it has only gotten better.

It's a fun adult oriented shoot em up show with not much to offer in intellectual dialog, but non the less it is great. It has humor, violence, and action with lots of gun play and fighting. You can't get enough of the opening credits song. It's the only show I have ever listened to the music before every episode for all four seasons without fast forwarding. The show just works for me. I love that there really is no cliff hanger endings in each season. There is always a nice finality to it and you still can't wait for the next season to start. I will miss this show its one of my favorites. We can always hope they don't realize what they had til it was gone and bring it back some day....

The last season with the original cast if you have seasons 1-3 you will want this 4th one.

I've been a fan since before CINEMAX got involved for the second series (considered the first in the U.S.), buying from Amazon UK. This is one of the best action series on television. Excellent acting and solid scripts. You bond with the main characters. UK television has no reservations about killing off principal characters, so these guys do face the consequences of their high risk occupations, which adds to the realism OK, they do take some poetic license with the realism, but its generally pretty solid. No shark jumping..

Just thought that the actors were bored throughout the season. Its like they were in a rush to complete a contract season and get onto other things. Indeed Sullivan Stapleton immediately went on to star in the hit series Blindspot. I just think that the final season was a contract the producers were filling and jumbled up a quick 10 part story arc. Although recent reports from Sky One and Cinemax is that they are bringing the show back in 2017 with a whole new cast so that might be something to look forward too.