Complex sentence: The documentary crew will travel to some of the same places Eruç passed through, filming those places along with the people Eruç met and combining that film with all the existing video footage, still images and journal entries created by Eruç during the five year voyage.
Split into simpler sentences: The documentary crew will travel to some of the same places Eruç passed through, filming those places along with the people he met. The crew will then combine the new film with existing video footage, still images and journal entries created by Eruç during the five year voyage.