Complex sentence: The Guardians then wake up imprisoned on the planet Maltus by Volthoom, who restores Ganthet's emotions about his past and sees it is revealed that the Guardians had removed their emotions becoming unemotional having fear of emotions after Volthoom nearly destroys the whole universe.
Split into simpler sentences: The Guardians then wake up imprisoned on the planet Maltus by Volthoom, who restores Ganthet's emotions about his past. It is revealed that the Guardians had removed their own emotions, having fear of emotions after Volthoom nearly destroys the whole universe.