http://www.imdb.com/title/tt0364845/

I don't know why but pretty much ever since it was first aired in Denmark, I've been hooked. It emerged around the same time the CSI series was gaining popularity, but this kicks CSI's ass in every category.
I liked JAG, and even though it was good, this is a case were the spin-off is sooo much better. The stories are intelligent, the quality of the production is high, the dialogue is funny and relaxed and the chemistry between the characters is phenomenal.
I challenge you to find a series that is as all around great as this, in fact I'd nominate it as one of the best series of the decade.