Complex sentence: In 2009 Producer Philip J. Day and his team had been filming in the desert of southern Peru on a film about the mysterious Nazca Lines for National Geographic Channel but in the early hours one morning the project took a dangerous turn.
Split into simpler sentences: In 2009 Producer Philip J. Day and his team had been filming in the desert of southern Peru on a film about the mysterious Nazca Lines for National Geographic Channel. But in the early hours one morning the project took a dangerous turn.