The Mars Chronicles

The Mars Chronicles is a story set in the future where people on Earth are able to travel back and forth to Mars. A team of traitors takes a simple business trip to Mars but in the end, only attempts to capture and hold for ransom a Martian City and return home unharmed. Unbeknownst to the humans, the Martians have their own ways of finding out who the traitors are before they comfortably return back to Earth.