I really enjoyed this series. Many felt it was a poor man's "Indiana Jones" but I found it interesting to watch and well constructed with believable characters and relationships. The two leads had a great father/son chemistry and were well cast in their roles. Having said that, I'm more of a drama series fan than an adventure fan so maybe that's why I liked a series that some fans of the genre found lacking.
The last episode tied together a few of the pieces of the puzzle the team had found along the way and left me with a sad feeling of wishing I would get to learn where it was all headed.
Whilst a good episode on its own and a great link to future adventures, as an ending all it did was present the audience with a half finished jigsaw puzzle. Very frustrating but with four episodes aired and nine left in the can I don't suppose the writers had much time or notice to wind the story down into any kind of satisfying end.