Complex sentence: Caleb's family background is further illuminated Season 2 when Nerissa captures Caleb and imprisons him on Mount Thanos, where she reveals that she is his mother, and that she gave birth to him with the intent that he would overthrow Phobos for her.
Split into simpler sentences: Caleb's family background is further illuminated to in Season 2 when Nerissa captures Caleb and imprisons him on Mount Thanos. There where she reveals that she is his mother, and that she gave birth to him with the intent that he would overthrow Phobos for her.