Complex sentence: Harlan confesses his plan in which he would eventually release the real SG-1 team so that they would not know of their robot duplicates and he hoped that the robot SG-1 would remain with him and help maintaining the facility.
Split into simpler sentences: Harlan confesses his plan in which he would eventually release the real SG-1 team so that they would not know of their robot duplicates. He hoped that the robot SG-1 would remain with him and help maintain the facility.