The series stars two powerful actors, Benedict Cumberbatch as Sherlock Holmes, and Martin Freeman as Dr. John Watson. This version is updated to modern times. As an example, Watson doesn't write a journal but instead creates a blog. There is even a contemporary Moriarty. This current take on the Sir Arthur Conan Doyle stories is almost unique in its direction and flow. First you see what is happening, then you see everything from Sherlock's point of view along with a sub-titled type explanation of what he sees.
The story lines try to tie in with the original tales, and they succeed. The scripts are very tightly written; nothing left unexplained, no stones unturned, everything fits perfectly.
One of the nice things about the series is that each episode is long, roughly an hour and a half. Almost a stand-along movie in and of itself. I am anxiously awaiting Episode 3. If there are any Sherlock Holmes fans out there that haven't seen Sherlock, then I highly recommend it.