Complex sentence: In Book 2, we see the a familiar looking young boy dressed in Nazi attire in the year 1941, being brought to meet and trained by Wolfsangel to kill Jewish slaves being held captive.
Split into simpler sentences: In Book 2, we see a familiar-looking young boy dressed in Nazi attire in 1941. He is brought to Wolfsangel and trained to kill Jewish slaves being held captive.