TV The Transformers - Season 2 Episode 39 : The Key to Vector Sigma (1) The Transformers - Season 2 Episode 39 : The Key to Vector Sigma (1) 7.8/10 by 405 users The Decepticons acquire the Key that will give them access to Vector Sigma. After using Vector Sigma, they find the Key is also capable of making organics turn into machines. Megatron prepares to use it against Earth and The Autobots will need new allies in this battle, but their creation will come at a high price. Details Casts Posters Images Title The Transformers - Season 2 Episode 39 : The Key to Vector Sigma (1) Alternative Titles 变形金刚G1, Fight! Super Robot Lifeform Transformers, 戦え! 超ロボット生命体 トランスフォーマー, Трансформери: Генерація 1, Transformers, Transformers Generation 1 First Air Date 1984-10-06 Last Air Date 1987-11-11 Number of Episodes 95 Number of Seasons 4 Genres Animation, Kids, Action & Adventure, Sci-Fi & Fantasy, Networks Syndication, Casts Peter Cullen, Frank Welker, Richard Gautier, Jack Angel, Susan Blu, Corey Burton, David Mendenhall, Victor Caroli, Stan Jones, John Stephenson, Dan Gilvezan Plot Keywords , Optimus Prime (voice) Peter Cullen Galvatron / Chromedome (voice) Frank Welker Hot Rod (voice) Richard Gautier Ultra Magnus / Cyclonus (voice) Jack Angel Arcee (voice) Susan Blu Spike Witwicky (voice) Corey Burton Daniel Witwicky (voice) David Mendenhall Narrator (voice) Victor Caroli Scourge (voice) Stan Jones Kup (voice) John Stephenson Goldbug (voice) Dan Gilvezan Brainstorm (voice) Michael Bell Crosshairs (voice) Neil Ross Sureshot (voice) Steve Bulen Blurr (voice) John Moschitta Jr. Highbrow (voice) Johnny Haymer Cerebros (voice) Jered Barclay Misfire (voice) Stan Jones Mindwipe (voice) Stephen Keener Skullcruncher (voice) Christopher Collins Episodes List The Transformers Season 2 :Episode 1 Autobot Spike Autobot Spike 1985-09-23 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 2 The Immobilizer The Immobilizer 1985-09-24 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 3 Dinobot Island (1) Dinobot Island (1) 1985-09-24 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 4 Dinobot Island (2) Dinobot Island (2) 1985-09-26 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 5 Traitor Traitor 1985-09-27 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 6 Enter the Nightbird Enter the Nightbird 1985-09-29 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 7 Changing Gears Changing Gears 1985-09-30 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 8 A Prime Problem A Prime Problem 1985-10-01 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 9 Atlantis, Arise! Atlantis, Arise! 1985-10-02 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 10 Attack of the Autobots Attack of the Autobots 1985-10-03 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 11 Microbots Microbots 1985-10-06 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 12 The Master Builders The Master Builders 1985-10-07 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 13 The Insecticon Syndrome The Insecticon Syndrome 1985-10-08 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 14 Day of the Machines Day of the Machines 1985-10-09 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 15 Megatron's Master Plan (1) Megatron's Master Plan (1) 1985-10-13 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 16 Megatron's Master Plan (2) Megatron's Master Plan (2) 1985-10-14 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 17 Auto Berserk Auto Berserk 1985-10-15 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 18 City of Steel City of Steel 1985-10-16 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 19 Desertion of the Dinobots (1) Desertion of the Dinobots (1) 1985-10-20 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 20 Desertion of the Dinobots (2) Desertion of the Dinobots (2) 1985-10-21 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 21 Blaster Blues Blaster Blues 1985-10-22 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 22 A Decepticon Raider in King Arthur's Court A Decepticon Raider in King Arthur's Court 1985-10-23 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 23 The God Gambit The God Gambit 1985-10-27 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 24 The Core The Core 1985-10-28 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 25 Make Tracks Make Tracks 1985-10-29 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 26 The Autobot Run The Autobot Run 1985-10-30 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 27 The Golden Lagoon The Golden Lagoon 1985-11-03 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 28 Quest for Survival Quest for Survival 1985-11-04 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 29 The Secret of Omega Supreme The Secret of Omega Supreme 1985-11-05 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 30 Child's Play Child's Play 1985-11-06 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 31 The Gambler The Gambler 1985-11-10 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 32 The Search for Alpha Trion The Search for Alpha Trion 1985-11-11 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 33 Auto-Bop Auto-Bop 1985-11-12 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 34 Prime Target Prime Target 1985-11-13 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 35 The Girl Who Loved Powerglide The Girl Who Loved Powerglide 1985-11-17 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 36 Triple TakeOver Triple TakeOver 1985-11-18 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 37 Sea Change Sea Change 1985-11-19 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 38 Hoist Goes Hollywood Hoist Goes Hollywood 1985-11-20 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 39 The Key to Vector Sigma (1) The Key to Vector Sigma (1) 1985-11-24 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 40 The Key to Vector Sigma (2) The Key to Vector Sigma (2) 1985-11-25 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 41 Aerial Assault Aerial Assault 1985-12-09 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 42 Masquerade Masquerade 1985-12-15 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 43 Trans-Europe Express Trans-Europe Express 1985-12-22 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 44 War Dawn War Dawn 1985-12-24 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 45 Cosmic Rust Cosmic Rust 1985-12-25 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 46 Kremzeek! Kremzeek! 1985-12-26 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 47 Starscream's Brigade Starscream's Brigade 1986-01-06 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 48 The Revenge of Bruticus The Revenge of Bruticus 1986-01-07 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can... The Transformers Season 2 :Episode 49 B.O.T. B.O.T. 1986-01-08 The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can...