The show takes place ten years after the finale of Armada, opening in an age of peace on Cybertron and Earth which is destined not to last long. Energon pits the Autobots against an array of villains: the reborn Megatron , the barely functional Unicron, and the mysterious Alpha Q and his Terrorcon minions.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Cybertron City | 2004-01-09 | 30 min |
| Season 1 | Episode 2 | Energon Stars | 2004-01-16 | 30 min |
| Season 1 | Episode 3 | Scorponok | 2004-01-23 | 30 min |
| Season 1 | Episode 4 | Megatron's Sword | 2004-01-30 | 30 min |
| Season 1 | Episode 5 | The New Cybertron City | 2004-02-06 | 30 min |
| Season 1 | Episode 6 | Megatron Resurrected | 2004-02-13 | 30 min |
| Season 1 | Episode 7 | Megatron Raid | 2004-02-20 | 30 min |
| Season 1 | Episode 8 | Starscream the Mysterious Mercenary | 2004-02-27 | 30 min |
| Season 1 | Episode 9 | Battle of the Asteroid Belt | 2004-03-05 | 30 min |
| Season 1 | Episode 10 | Energon Tower | 2004-03-12 | 30 min |
| Season 1 | Episode 11 | The Legend of Rodimus | 2004-03-19 | 30 min |
| Season 1 | Episode 12 | Crisis in Jungle City | 2004-03-26 | 30 min |
| Season 1 | Episode 13 | Kicker Beware | 2004-04-02 | 30 min |
| Season 1 | Episode 14 | Energon Grid | 2004-04-09 | 30 min |
| Season 1 | Episode 15 | Rodimus: Friend or Foe? | 2004-04-16 | 30 min |
| Season 1 | Episode 16 | Go for Unicron! | 2004-04-23 | 30 min |
| Season 1 | Episode 17 | The Return of Demolisher | 2004-04-30 | 30 min |
| Season 1 | Episode 18 | A Tale of Two Heroes | 2004-05-07 | 30 min |
| Season 1 | Episode 19 | Battle Stations | 2004-05-14 | 30 min |
| Season 1 | Episode 20 | Alpha Q: Identity | 2004-05-21 | 30 min |
| Season 1 | Episode 21 | Shockblast: Rampage | 2004-05-28 | 30 min |
| Season 1 | Episode 22 | Survival Instincts | 2004-06-04 | 30 min |
| Season 1 | Episode 23 | Each One Fights... | 2004-06-11 | 30 min |
| Season 1 | Episode 24 | Unicron Unleashed | 2004-06-18 | 30 min |
| Season 1 | Episode 25 | Open Fire! | 2004-06-25 | 30 min |
| Season 1 | Episode 26 | Ripped Up Space | 2004-07-02 | 30 min |
| Season 1 | Episode 27 | Team Optimus Prime | 2004-07-09 | 30 min |
| Season 1 | Episode 28 | Protection | 2004-07-16 | 30 min |
| Season 1 | Episode 29 | Imprisoned Inferno | 2004-07-23 | 30 min |
| Season 1 | Episode 30 | Jungle Planet | 2004-07-30 | 30 min |
| Season 1 | Episode 31 | Bulkhead | 2004-08-06 | 30 min |
| Season 1 | Episode 32 | Farewell Inferno | 2004-08-13 | 30 min |
| Season 1 | Episode 33 | Scorponok's Scars | 2004-08-20 | 30 min |
| Season 1 | Episode 34 | Crash Course | 2004-08-27 | 30 min |
| Season 1 | Episode 35 | Omega Supreme | 2004-09-03 | 30 min |
| Season 1 | Episode 36 | A Heroic Battle | 2004-09-10 | 30 min |
| Season 1 | Episode 37 | The Power of Unicron | 2004-09-17 | 30 min |
| Season 1 | Episode 38 | Optimus Supreme | 2004-09-24 | 30 min |
| Season 1 | Episode 39 | Unicron Perishes | 2004-10-01 | 30 min |
| Season 1 | Episode 40 | Ambition | 2004-10-08 | 30 min |
| Season 1 | Episode 41 | Wishes | 2004-10-15 | 30 min |
| Season 1 | Episode 42 | Galvatron! | 2004-10-22 | 30 min |
| Season 1 | Episode 43 | Break Through | 2004-10-29 | 30 min |
| Season 1 | Episode 44 | Distribution | 2004-11-03 | 30 min |
| Season 1 | Episode 45 | The Omega Train | 2004-11-05 | 30 min |
| Season 1 | Episode 46 | Decepticon Army | 2004-11-12 | 30 min |
| Season 1 | Episode 47 | Ironhide Team | 2004-11-19 | 30 min |
| Season 1 | Episode 48 | Formidable | 2004-11-26 | 30 min |
| Season 1 | Episode 49 | Galvatron Terror | 2004-12-03 | 30 min |
| Season 1 | Episode 50 | Destructive Power | 2004-12-10 | 30 min |
| Season 1 | Episode 51 | Spark | 2004-12-17 | 30 min |
| Season 1 | Episode 52 | The Sun | 2004-12-24 | 30 min |
| Visual Effects | Hideki Fukushima | Mechanical Designer |
| Visual Effects | Shinya Ogura | Mechanical Designer |
| Visual Effects | Hiroshi Ogawa | Mechanical Designer |
| Visual Effects | Gorou Murata | Mechanical Designer |
| Sound | Hiroshi Kitadani | Theme Song Performance |
