TV Transformers: The Headmasters - Season 1 Episode 10 : Seibertron is in Grave Danger (2) Transformers: The Headmasters - Season 1 Episode 10 : Seibertron is in Grave Danger (2) 7.6/10 by 14 users The Predacons are confronted by the Trainbots as Guardian knocks out Bruticus. The Cybertrons continue to plan a way to stop Galvatron from getting his hands on the new compound as Chromedome spots Weirdwolf and Wipe. He notices that they've been heading deep into Seibertron and tries to figure out what they are up to, sending out a telepathic message to the other Headmasters. They arrive, attacking Weirdwolf and Skull, as Chromedome heads underground to stop Wipe. On the surface, the battle still rages on, destroying more and more of the planet. Wipe manages to find Vector Sigma's chamber and he sets the bombs in it, just as Chromedome arrives. The Cybertrons cannot remove the bomb, so they flee the planet after some long, hard farewells. Galvatron arrives in Vector Sigma's chamber just as the bombs go off and is caught in the explosion. Rodimus, Cha and Blurr then depart in search of a new home for the Cybertrons, leaving Fortress in charge. Details Casts Posters Images Title Transformers: The Headmasters - Season 1 Episode 10 : Seibertron is in Grave Danger (2) Alternative Titles Transformers Headmasters, Transformers The Headmasters First Air Date 1987-07-02 Last Air Date 1988-04-25 Number of Episodes 35 Number of Seasons 1 Genres Animation, Sci-Fi & Fantasy, Action & Adventure, Networks Nippon TV, Casts Ikuya Sawaki, Tomiko Suzuki, Hideyuki Hori, Ryoichi Tanaka, Masato Hirano, Michitaka Kobayashi, Hochu Otsuka, Masaharu Sato Plot Keywords , Fortress Maximus Ikuya Sawaki Daniel Witwicky Tomiko Suzuki Chromedome Hideyuki Hori Brainstorm Ryoichi Tanaka Hardhead Masato Hirano Highbrow Michitaka Kobayashi Crosshairs Hochu Otsuka Sureshot Masaharu Sato Episodes List Transformers: The Headmasters Season 1 :Episode 1 Four Warriors Come Out of the Sky (1) Four Warriors Come Out of the Sky (1) 1987-07-02 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 2 The Mystery of Planet Master (2) The Mystery of Planet Master (2) 1987-07-09 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 3 Birth of Double Convoy! (3) Birth of Double Convoy! (3) 1987-07-16 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 4 Operation: Cassette Operation: Cassette 1987-07-23 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 5 Rebellion on Planet Beast Rebellion on Planet Beast 1987-07-30 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 6 Approach of the Demon Meteorite Approach of the Demon Meteorite 1987-08-06 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 7 The Four Million Year Old Veil of Mystery The Four Million Year Old Veil of Mystery 1987-08-27 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 8 Terror of the Six Shadows Terror of the Six Shadows 1987-09-03 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 9 Seibertron is in Grave Danger (1) Seibertron is in Grave Danger (1) 1987-09-04 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 10 Seibertron is in Grave Danger (2) Seibertron is in Grave Danger (2) 1987-09-11 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 11 Scorponok, The Shadow Emperor Scorponok, The Shadow Emperor 1987-09-18 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 12 The Dormant Volcano Mysteriously Erupts The Dormant Volcano Mysteriously Erupts 1987-09-25 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 13 Head On, Fortress Maximus Head On, Fortress Maximus 1987-10-02 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 14 Explosion on Mars!! Maximus is in Danger! (1) Explosion on Mars!! Maximus is in Danger! (1) 1987-10-09 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 15 Explosion on Mars!! Megazarak Appears! (2) Explosion on Mars!! Megazarak Appears! (2) 1987-10-16 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 16 The Return of the Immortal Emperor The Return of the Immortal Emperor 1987-11-20 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 17 SOS From Planet Sandra SOS From Planet Sandra 1987-11-27 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 18 Daniel's Biggest Pinch Ever!! Daniel's Biggest Pinch Ever!! 1987-12-04 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 19 Battle to the Death on the Beehive Planet Battle to the Death on the Beehive Planet 1987-12-11 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 20 Tide-Turning Battle on the False Planet Tide-Turning Battle on the False Planet 1987-12-18 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 21 Find Megazarak's Weak Spot Find Megazarak's Weak Spot 1987-12-18 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 22 Head Formation of Friendship Head Formation of Friendship 1987-12-18 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 23 Mystery of the Space Pirate Ship Mystery of the Space Pirate Ship 1987-12-25 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 24 The Death of Ultra Magnus (1) The Death of Ultra Magnus (1) 1988-01-22 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 25 The Emperor of Destruction Vanishes on an Iceberg (2) The Emperor of Destruction Vanishes on an Iceberg (2) 1988-01-29 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 26 I Risk My Life for Earth I Risk My Life for Earth 1988-02-05 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 27 The Miracle Warriors- The Targetmasters (1) The Miracle Warriors- The Targetmasters (1) 1988-02-12 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 28 The Miracle Warriors- The Targetmaster (2) The Miracle Warriors- The Targetmaster (2) 1988-02-19 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 29 The Master Sword is in Danger The Master Sword is in Danger 1988-02-26 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 30 The Zarak Shield Turns the Tide The Zarak Shield Turns the Tide 1988-03-04 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 31 Operation: Destroy the Destrons Operation: Destroy the Destrons 1988-03-11 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 32 My Friend Sixshot! My Friend Sixshot! 1988-03-18 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 33 Duel on the Asteroid Duel on the Asteroid 1988-03-25 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 34 The Final Showdown on Earth (1) The Final Showdown on Earth (1) 1988-04-25 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise. Transformers: The Headmasters Season 1 :Episode 35 The Final Showdown on Earth (2) The Final Showdown on Earth (2) 1988-03-25 Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise.