An alien woman named Maya crash-lands on Earth. Her homeworld was destroyed by the Blasters, a cruel alien race who steals the natural resources from other planets. She falls in love with a scientist and gives birth to a human boy named Kentaro. When the Blasters invade the Earth, Kentaro must defeat them by fighting with Astroganger, a robot made from living metal.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Let's Go, Ganger | 1972-10-04 | 25 min |
| Season 1 | Episode 2 | The Living Robot | 1972-10-11 | 25 min |
| Season 1 | Episode 3 | The Burning Island Plot | 1972-10-18 | 25 min |
| Season 1 | Episode 4 | Rainbow of Terror | 1972-10-25 | 25 min |
| Season 1 | Episode 5 | Search for Ganger's Secret | 1972-11-01 | 25 min |
| Season 1 | Episode 6 | Rusty Ganger | 1972-11-08 | 25 min |
| Season 1 | Episode 7 | Space Bomber | 1972-11-15 | 25 min |
| Season 1 | Episode 8 | Space Hounds | 1972-11-22 | 25 min |
| Season 1 | Episode 9 | Suspicious Granny - Head Electro | 1972-11-29 | 25 min |
| Season 1 | Episode 10 | I'm Strong! Ganger | 1972-12-06 | 25 min |
| Season 1 | Episode 11 | Earth is Ours! | 1972-12-13 | 25 min |
| Season 1 | Episode 12 | The Valley of Shooting Stars | 1972-12-20 | 25 min |
| Season 1 | Episode 13 | Showdown in the White Wilderness | 1972-12-27 | 25 min |
| Season 1 | Episode 14 | Showdown Under the Midnight Sun | 1973-01-03 | 25 min |
| Season 1 | Episode 15 | Secret of the Aurora | 1973-01-10 | 25 min |
| Season 1 | Episode 16 | Blaster Declaration of War | 1973-01-17 | 25 min |
| Season 1 | Episode 17 | The Horrible Spy Monster | 1973-01-24 | 25 min |
| Season 1 | Episode 18 | Chain Mail Whirlpool | 1973-01-31 | 25 min |
| Season 1 | Episode 19 | Time Bomb Robot Monster | 1973-02-07 | 25 min |
| Season 1 | Episode 20 | The Lensmer Avatar Plot | 1973-02-14 | 25 min |
| Season 1 | Episode 21 | The Robot Force Has Come! | 1973-02-21 | 25 min |
| Season 1 | Episode 22 | Space Ghost Ship | 1973-02-28 | 25 min |
| Season 1 | Episode 23 | Duel on Kantaros - Blaster Sonic | 1973-03-07 | 25 min |
| Season 1 | Episode 24 | Aim For His Chest Pendant! | 1973-03-14 | 25 min |
| Season 1 | Episode 25 | Blaster Devil - The Devil's Eye | 1973-03-21 | 25 min |
| Season 1 | Episode 26 | Space Panther | 1973-03-28 | 25 min |
| Directing | Yoshikata Nitta | Series Director |
| Writing | Tatsuo Tamura | Series Composition |
| Sound | Akihiro Komori | Music |
| Visual Effects | Eiji Tanaka | Character Designer |
| Art | Takamura Mukuo | Art Direction |
| Visual Effects | Eiji Tanaka | Animation Director |
| Sound | Etsuji Yamada | Sound Director |
| Production | Hiromichi Mogaki | Production Manager |
| Editing | Eiko Nishide | Editor |
| Visual Effects | Juuji Mizumura | Animation |
| Visual Effects | Moriyasu Taniguchi | Animation |
| Visual Effects | Takashi Saijo | Animation |
