This cartoon series, characterized by extremely limited animation, features five of the most popular super-powered heroes from Marvel Comics: the Incredible Hulk, the Mighty Thor, Captain America, Iron Man, and the Sub-Mariner.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Origin of Captain America/Wreckers Among Us/Enter the Red Skull | 1966-09-05 | 30 min |
| Season 1 | Episode 2 | The Sentinel and the Spy/The Fantastic Origin of the Red Skull/Lest Tyranny Triumph | 1966-09-12 | 30 min |
| Season 1 | Episode 3 | Midnight in Greymore Castle/This Be Treason/When You Lie Down with Dogs | 1966-09-19 | 30 min |
| Season 1 | Episode 4 | The Revenge of Captain America/The Trap Is Sprung/So Dies a Villain | 1966-09-26 | 30 min |
| Season 1 | Episode 5 | The Return of Captain America/The Search/To Live Again | 1966-10-03 | 30 min |
| Season 1 | Episode 6 | Zemo and his Masters of Evil/Zemo Strikes/The Fury of Zemo | 1966-10-10 | 30 min |
| Season 1 | Episode 7 | Let the Past Be Gone/The Adaptoid/The Super Adaptoid | 1966-10-17 | 30 min |
| Season 1 | Episode 8 | The Coming of the Swordsman/Vengeance Is Ours/Emissary of Destruction | 1966-10-24 | 30 min |
| Season 1 | Episode 9 | The Bitter Taste of Defeat/Sorcery Triumph/The Road Back | 1966-10-31 | 30 min |
| Season 1 | Episode 10 | When the Commissar Commands/Doorway to Doom/Duel or Die | 1966-11-07 | 30 min |
| Season 1 | Episode 11 | The Sleeper Shall Awake/Where Walks the Sleeper/The Final Sleep | 1966-11-14 | 30 min |
| Season 1 | Episode 12 | The Girl from Cap's Past/The Stage Is Set/Thirty Minutes to Live | 1966-11-21 | 30 min |
| Season 1 | Episode 13 | The Red Skull Lives/He Who Holds the Cosmic Cube/The Red Skull Supreme | 1966-11-28 | 30 min |
| Production | Steve Krantz | Producer |
| Production | Robert L. Lawrence | Producer |
