Brit is old and indestructible. The government regularly contracts his services to handle Situations no one else can. Unfortunately, due to circumstances beyond his control, the solutions Brit dishes out tend to be incredibly messy (bloody, gory), and public. So, he keeps the government busy covering up what really went down.
At least one scientist has been jonesing to get his hands on Brit for years - to study his genetic make-up and see if there's some way science may be able to replicate his powers. Up until now, they've refrained, but one of Brit's "handlers"/contacts believes that Brit may have been injured in a battle with an alien (was that a nosebleed he saw?). Before the scientists can swoop in triumphantly, however, this same contact tips Brit off and Brit takes off with his lovely girlfriend to an unknown isolated location.
When the government eventually does track him down, they aren't able to nab him. Brit's contact gets a promotion for his actions (however devious), and Brit goes back to occasionally helping out with some of the world's more difficult situations. His involvement, however, causes the deaths of his ex-wife, her husband, and their child, and Brit sinks into a deep depression unsure if he should use his powers for anything.
I really like this tough old guy - he's like a more resilient Harrison Ford or Sean Connery (older, mature, but still attractive). He really can't be taken down. It's kind of an interesting situation, though, because he doesn't have unlimited strength or any other powers that would actually help him beat his foes any faster. It's his tenacity and indestructibility that keep him in the game. Maybe that's why everything he does is so incredibly messy. Glad they went with this incarnation of Brit - some of the other character sketches really had him looking pretty hideous. This is a mostly bash-y storyline. Bring on the bad guys and Brit punches them a lot or pulls out their intestines and makes them bleed.