All 34 episodes from Seasons 3 and 4 of this animated adventure series, in which the struggle for supremacy of the Earth continues against the evil Decepticons. Episodes are: 'The Five Faces of Darkness (1)', 'The Five Faces of Darkness (2)', 'The Five Faces of Darkness (3)', 'The Five Faces of Darkness (4)', 'The Five Faces of Darkness (5)', 'The Killing Jar', 'Chaos', 'Dark Awakening', 'Starscream's Ghost', 'Thief in the Night', 'Forever is a Long Time Coming', 'Surprise Party', 'Madman's Paradise', 'Carnage in C-Minor', 'Fight or Flee', 'Webworld', 'Ghost in the Machine', 'The Dweller in the Depths', 'Nightmare Planet', 'The Ultimate Weapon', 'The Quintesson Journal', 'The Big Broadcast of 2006', 'Only Human', 'Grimlock's New Brain', 'Money is Everything', 'Call of the Primitives', 'The Burden Hardest to Bear', 'The Face of the Nijika', 'The Return of Optimus Prime (1)' and 'The Return of Optimus Prime (2)', 'Rebirth (1)', 'Rebirth (2)', 'Rebirth (3)' and 'Rebirth (4)'.