The BBC site describes it as:
"The story of brothers Carl and Chris who haven't seen each other for 15 years but reunite in a desperate mission to find Carl's estranged son. That mission soon becomes a journey from hell when encounters with dodgy villains, the police and a hotel proprietor who is missing a vital piece of his anatomy, mean that things do not go exactly to plan."
I'm pretty sure Carl and Chris were in the Baron's Night Club sketches on Bang Bang its Reeves and Mortimer.
Series One (2004)